Flash Official Unlocked Firmware on S21 Ultra
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- Опубликовано: 30 сен 2024
- Just got my S21 Ultra on launch day, time to flash official unlocked firmware from Samsung to remove all of the preloaded carrier bloat!
Use XAC for Canada, and XAA for US now. Ignore SJR, it now installs bloat when you set it up with a SIM card already installed.
Samsung USB Driver for Windows, Odin 3.14.1 3b, and Firmware Download Tool: (Frija) can be found in the archive.
Samsung Archive:
usheethe.com/ktc2
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Great video! If you are in the US make sure to use XAA not SJR. Many thanks from your neighbors to the south!
Without explanation?
SJR is the old unlocked for Canada on W, XAA is unlocked for US using U1, thats why they said to use XAA and not SJR because SJR doesnt exist for U1, only W. But now Canada now uses XAC for W.
So, TL;DR, use U1 XAA for US, or W XAC for Canada.
@@frozennorthproductions You can also flash U1 on the W model 🙂
I'm actually running U1 XAA on my W S21u because Canada gets super slow updates. Only issue is that Canadian 5G doesn't work on U1, Bixby alarm only reads Fahrenheit, no way to change it in any settings to Celsius, and Samsung Pay requires a Zipcode but we use Postal Codes in the frozen north.
There's a workaround for that last one but it still has its limitations using U1 in Canada so W XAC is preferred for the majority as you lose 5G and the metric system with Bixby lol
hey i know this is old but which version should i use for a g966u s21 plus, tried usc and it got the tmobile
This was the BEST tutorial I've seen. Special thanks for explaining the difference between the CSC and HOME_CSC files. I have a Work Profile for my job through KNOX and your explanation saved me a lot of time by using the HOME version! On ATT in the US and phone quit installing OTA updates since Feb. Nothing worked until I tried your steps and I am not current as of May 2022! Thanks again!
Once the unlocked official Samsung firmware is flashed, can the phone be used with any carrier?
Edit: nevermind, i saw you answered this question already. Thanks!
worked great for me in October of 2023 .. purchased a "W" version of the phone from amazon, needed it to be "U1" version for use on AT&T in USA, got it flashed and it's working perfect.
Hi Ben, What firmware should I select for SC-52B Model?
I was thinking what computer is that when it is not responding and you listed out the specs. I chuckled 😂
Hi. Can I flash SM-G996U1 XAA firmware on a SM-G996U XAA phone? Cant seem to find G996U XAA CSC, thanks
XAA is Samsung Official, it's only U1. U firmwares are Carrier Specific, so only TMB, ATT, etc.
The hardware is identical so you can flash U1 XAA. The only different is U1 doesn't have carrier bloat. U does.
Thank you so much! I kept getting repartion or that one error! Was on the verge of giving up!!! But realized I was downloading 988u1 instead of 998u1 thank you so much!!
Thats one message I got when I was trying to do this with my A52 5G. I have an Indian version and want to Flash Canadian firmware. Model is SM-A52F and i loaded SM-A52W firmware.
Bro I have s22 ultra SM 908U . I want to change its firmware to SM 908U1 please make an video on it bro
Hi please help me, I have AT&T s21 ultra G998U, can I flash US G99U1?
Hi Ben, I'm using an aS21 running SM - G991U Verizon firmware, unlocked Verizon. Which version should I use to remove all the bloatware from Verizon and make sure 5G works fine. I'm in Africa
Can't be soft-bricked if you flash HOME_CSC but in the most cases you have to hard reset it so it's the same. When cross-flashing must be wiped (backup first with SmartSwitch). Great video 👍
download for odin is missing. Do you need patched?
Yeah, Google Drive dated their desktop app and half my Google Drive got wiped, they should be working again now.
I have a galaxy s21 ultra 5G I have no updates since April 1 2023, I am stuck on android 13, one ui 5.1, cs xaa
Hi brother thank you so much!
I was able to successfully flash my Carrier Unlocked S21 Ultra from Verizon from U to U1. I went straight from 13 to 14, no issues whatsoever.
Although I got my ROM from Samfw because Frija didn't recognise my device.
Although, I used smart switch to backup everything first, then factory reset the phone before I started flashing. The flash only took like 5 minutes.
thanks i have the same s21 ultra from verizon and your comment gave me the courage to do it and now i got U1 as well.
@Nobodynoidea hi guys I have also the same phone unlocked from verizon u model .. can u explain why choosing u1 instead of u firmware ?
These method although cool it won't sim unlock your phone if is not paid off.
Correct, this will only provide the unlocked firmware from a factory unlocked device without all of the carrier bloat apps, it will still be SIM locked by the carrier until it's paid off and then you can request the SIM unlock if you wish to go to another carrier.
Didnt work for me, i tried to remove ATT from my phone since i dont live in the US, it did update my software but didnt remove att.
I flashed unlocked firmware with tmobile csc on my S21 Ultra and it still boots up with Vzw/Vzw/Vzw, it refuses to let me off of Verizon carrier settings, other carrier sims work in the phone and get service but I can't get their settings so I don't get the proper frequency bands for those networks
Do I need to flash XAA csc?
Try flashing XAA for SM-G998U1 without a SIM card installed, set it up without a SIM card, and then install your SIM after. It might be reading the CSC off of the SIM and forcefully setting it during setup.
@@frozennorthproductions even that didn't work. No Sim, flashed U1 with XAA and it shows in service provider version vzw/vzw/vzw and even says vzw a 4th time in the line above next to G998U1-OYM
You can try changing your APN settings to match a different carrier with a different SIM card. Like if you toss in an AT&T SIM, if it still says Verizon, try changing your APN settings to AT&T APN, reboot, and it should switch.
There's another way to change the CSC using a phone code followed by your IMEI, I can't remember how to do it, I'll have to look it up.
You have to open the phone app, and dial *#272*YOUR-IMEI-NUMBER# and from the window that pops up, you can manually change your CSC to whatever the firmware supports.
Just to be sure though, you're flashing the entire XAA U1 firmware right? Like all files? BL AP CP CSC (not Home CSC) and then setting the phone up like new right? Cause if you're not flashing all files, and if you're using Home CSC, it's not going to remove the Verizon settings. It needs to be a full wipe cause you're converting the firmware. Once you're on the working unlocked XAA U1 firmware, you can use Home CSC for updates so you don't have to wipe everything but OTAs also work so you really never NEED Home CSC
@@frozennorthproductions 272 code doesn't work, Verizon blocks it. Also yes, I'm doing all files, with the normal csc file not home, the csc is literally locked to Verizon. But the phone isn't locked and gets service on other sim cards, just with vzw csc stuck to it
Hello everybody I have samsung s21+ Verizon network csc is vzw
And my software baseband version is (g996usqscgxh2) and the latest for xaa firmware on the firja and samfw is (G996u1uescgxh1) is it legal to update or may have problem
The second question if I make like you samsung pay will still work or not and device rooting or not
Thank you very much I am looking forward to your answer
Any answer plz?
How to use 5g connetion in snapdragon phone? Now, i am in asia only support 4g.
Hi! Can I flash my phone with older firmware oneui 6.0 if I have now G998BXXSBGXDH? Let me explain, I read that I cannot flash firmware with lower Bit/SW REV. In my case this is "B" but older firmwares available on internet has lower Bit/SW Rev, for example G998BXXUAGXDA has "A". Other versions of firmware also has lower like 9, 8, 7 and so on. Could you help me? I have problem with not working touch...
I have US version SM-G998U (VZW) and flashed the SM-G998U1 (XAA) firmware. It says successful. It takes about 5 minutes, then gets in a reboot loop. I was able to delete data and it rebooted back to VZW ;( Help???
Are you using patched odin or regular one? You gotta use the patched one to convert from U to U1
Aoa
Please tell me i am searching for days my phone is cpid approved in pakistan
It name is smg998b/ds and it is on one ui 3.1
And service provider is WWD/WWD,WWD/SMD
Can i install official firmware on it?
Does it will remove cpid
I want to know that it will work on b/ds
Because it is not u model it is exynos
Konx is installed in it
I need your help bro i have a 21 ultra and this was rooted and now i have the original software on my mobile but i can't open samsung pass
What does it happen if you try to use "Factory data reset"? It will keep the latest firmware or somehow go tho the initial firmaware? I suppose it will keep the last firmware, but just want to have a confirmation from you. Thanks. Great video, btw!
HuHu, once again I burned 5 hours to find a compatible firmware (PDA) for my s21 5 Sm-G991U ( research AT&T official website publishing ) and Your Tuts ( I did find whether your tut is 1- to need ROOT and 2- Unlock Bootloader or Not - Because I want keep them Original - No Root - No Unoffically Unlock Bootloader to keep "the warranty ". Mainly, I used to successfully update from 11 to 12 manually ( download firmware on 3rd party which has The PDA ID that AT&T public on their web). Finally, before using Ordin to Flash ^^ - I must back up my s21 via Smatch Switch and a notification show that SOFTWARE UPDATE ... lablab... Current Soft...Ver...: 12 G991USQU5CVDB -->Lastest Android V: 13 / Baseband V: G991USQU5DVK9 - This is what I want ( But the last update (11 ->12) I can't do this way. Thanks for sharing Can you answer the number 1, and 2 - Do we need to do them before following your tut?
Thanks a bunch Ben; this really is very useful; finally I'm. able to get rid of the bloatware on my phone; and it is way better in terms of performance without the bloatware. Have a a great holiday.
This works on the normal s21?
hello ben, my phone is currently an AT&T S22 that has been unlocked and the reason why i want to flash the unlocked firmware is so that I can recieve security patch and software updates from samsung because the carrier is not sending me updates and i don't live in America and use an AT&T sim. Once I flash the phone with the official unlocked firmware, will i be recieving updates automatically or do I still have to flash it every month? Also is it true that this whole flashing process will not work if the computer uses an AMD CPU?
If you flash the XAA version for that phone you will receive updates directly from Samsung, however it is no longer debloated from factory. Since OneUI 4.1, Samsung made it so when you insert a SIM, it will preinstall the carrier bloat, so your CSC will change to whatever SIM you're using. But, updates will still come directly from Samsung over the air like normal.
Also if you live in Canada, use XAC because it's in metric so a bunch of underlying stuff will be correct for Canada. XAA is imperial for the US. That's the only difference
Hello my AT&T s22 ultra runing on XAA it already unlocked don't get updates last update on August
Does this still work to get from tmb sm-g996u s21 plus 5g to the canadian w firmware, i read on the internet samsung might have changed how csc works...
They did, U variants get updates from the carrier, U1 get updates from Samsung. And W do both. If a W varient CSC is XAC, you will get the updates from Samaung. If the CSC is anything else, it comes from the carrier.
But all of them auto switch now as soon as you put a SIM card in.
For me, I'm running a W variant with XAC CSC on Bell. So the firmware in settings cha ges to BMC, but the updates still directly from Samaung because it's BMC on XAC firmware. It's kind of confusing but basically you only want two firmwares. Either U1 XAA for US, or W XAC for Canada. You also need to use Patched Odin to flash it because it changes the default model firmware and official Odin will fail to flash
EDIT:
The difference between W and U1 is that W does not use mmWave 5G, only Sub6 cause Canada doesn't have mmWave. And Bixby is metric. So Bixby will read weather in Celsius, Bixby alarm reads in Celsius, and Samsung Pay can recognize Canadian Debit Visa's.
U1 has mmWave, and Bixby is Imperial. Canadian credit cards still work on Samaung Pay with U1 but not Canadian Debit Visa cards.
Brother can we use 5G any country like i am from india and i have a s20 plus 5G but this is not working 5g here 😓
Hello sir, i have a s21 ultra ATT carrier unlocked phone, can i flash global rom on it, which version of android 13 base global rom can i flash?
Global phones are Exynos, you can't flash a Snapdragon phone with a Exynos firmware. You can only region swap the same SOC variants.
my god awful Redmi 8 has like 10 crap Chinese apps!!!!! i wish i could remove that shit!! its taking up so much space
Just root the phone and then download an app that will allow you to remove system level apps, you can fully Uninstall anything with root access
@@frozennorthproductions i would, but some apps will block me, i have tried it on a VM, and some apps got blocked
You might be able to find a way to mask root, there used to be a way many years ago using Xposed but I don't know if it's still up to date.
You could also use a custom ROM without Root
which one should i use for s21 plus?, USC? idk i tried that one and it got me the t mobile version again
U1 XAA for US models
W XAC for Canadian models
Hi sir i buy s21ultra sm-g998u.. version mobile..everything worked fine but when i check balance code its shows. Connection problem or invalid mmi code..i hope u help me. Im tied to search for my solution thanks Ben 😊
Please which firmware can i download for SM-G991U
SM-G991U1 XAA
I have s21 plus japan varient with snapdragon 888 i want to flesh usa u1 firmware is it possible because because both have sane hardware
No the japan models are different it will fail in odin while flashing
So I have a U Model which I flashed successfully to U1 and the latest OS updates (yay!), but even though I picked XAA, the CSC is remaining CHA. Any reason for this? How can I change my CSC to XAA as my carrier isn't even Spectrum (CHA)?
Which phone do you have man? I've got a US-imported Galaxy 22 Ultra which although does work with the sim card in my country, still won't receive any OTA updates. Some reddit post says that I need to flash the U1 version. Have you been able to fix yours?
Oh and mine said XAA/XAA,XAA/ATT
knox 0x1
hỗ trợ m từ xa với ạ
Brother please i need help
I buy samsung galaxy s21 ultra LG cellular variant(model no: SM-G998N).problem is i live in Bangladesh. In Bangladesh this phone doesn't support any 3G network band, can I flash korean to Bangladesh or any other country ?
Hey there, Appreciate the video. I have a question. My just received the lastest august update. But the latest firmware i can find on the phone has a date from may. Will that create an issue?
The app for downloading the firmware, Frija, says the firmware for my model can't be found.
Am I cooked?
were u able to do it?
@@dope0150 Yh. Someone on the OneUI subreddit helped me out. Gave me a link to a firmware for a U1 model which is apparently interchangeable with mine.
I have a Chinese model; SM-G9980 with dual sim, can I change its firmware to a Samsung official unlocked firmware?
Hi bro, I have to two firmwares currently installed firmware SM-G991NKSU4EWH5 but I want to downgrade to SM-G991NKSU3DVL2 is it possible? S21 5G .
No, the last part of your firmware is all the info you need to decode it. The last 5 will be your bootloader (can never be downgraded), the OneUI version, Year, Month, and Build.
So in this instance, the first one is 4EWH5 and the second one is 3DVL2. This means that the first one you mentioned uses an updated bootloader because it went from 3 to 4, so it can not be downgraded. You can flash anything that uses 4 from this point forward and once it updates to 5, you can never go back to 4, and so on.
As for the difference between E and D, that's going to be the version of OneUI. So that phone came with OneUI 3.1 Which would be A, 4.0 is B, 4.1 is C, 5.0 is D, 5.1 is E, and 6.0 will be F.
The year for each one is W vs V, so that's 2023 vs 2023, the next is H vs L, so that's the number of which letter it is in the alphabet, so A being January, B is February, and so on, so H is the 8th letter, that's the 8th month, August. and L is the 12th, that's the 12th month, December. and the last one is 5 vs 2, so that's weird and goes from 1 to 9 being build 1 through 9, but then it continues at A which is 10, B is 11, and so on. But for those builds, it's just build 5 vs build 2 which really means nothing unless you're going from the very rare updates (usually only OTA updates) that have a small bug fix so it might go up a few numbers but everything else is the same.
Basically, the first build you mentioned is 4EWH5 (Bootloader 4, OneUI 5.1, 2023, August, Build 5), and the second one is 3DVL2 (Bootloader 3, OneUI 5.0, 2022, December, Build 2).
You also have an N variant phone, which is locked to Korea and can not be region swapped using 3B_PatcheD Odin, so you're only able to flash N Firmware.
The latest version for your phone is going to be 4EWK2 and I'm not sure which CSC you're on or if you're able to switch, so your CSC options would be KOO, KTC, LUC, SKC.
You can find the latest build using Frija if you search for SM-S991N with one of those CSC's (which ever one you're currently using). and that will be the latest and most stable right now.
@@frozennorthproductions bro, thank you very much, that's so clear and I do really understand your explanation I just flash the latest firmware by using recommend tool frija and CSC is LUC thanks a lot great explanation. I want to bypass my phone but android 13 latest patch not working on frp tools currently any help?
Great video So i bought mine from Samsung but chose the T-Mobile variant. This process would work for me?
Yep, just download AXX for SM-G998U1 instead. Process is exactly the same and you'll save some space too.
I have a s7+ tab from verizon
Sim card of other carriers work
But low speeds on 5g...basically 3g
And no phone app for calling....(coz of digits verizon app)
I need original phone and messages app
So can I flash a SJR rom on this verizon tablet? Pls someone reply
My New S22 Ultra has no OEM unlocking in developers options. I have the Exynos 2200. Anyone know where my OEM unlocking is? So I can unlock my bootloader. Also now all the S22 android phones can not record interna audio for third party recorders. The permissions to record internal audio for third party records was removed by Google with android 12 and above.
How can i Switch U(at&t) to u1(global) version?
Oh, you meant unlocked, not global. Global is considered the European model. You want the XAA CSC. That's the unlocked U1 firmware from Samsung.
I am getting a FAIL! SHA256 is invalid on my S21 SM-G991U that has a CSC of TMB. I am trying to flash SM-G991U1 XAA. Any pointers?
Thanks
Try the patched version of Odin, it's modded to allow it to flash anyway if this error comes up.
@@frozennorthproductions okay. do you have a link? Is it okay to just force it through or will it brick the device?
drive.google.com/file/d/1D2J4Py47fad1KaP3dt67JSrhujp0D_Cw
It's normal for it to fail, it's failing because you have a U variant and it's seeing a U1 firmware, you need to use the patched version to bypass this check so you can successfully convert it over to U1
Successfully flashed my S23 plus S916U model with firmware of S916U1 thumbs up to the helpful video
hi, did you choose csc or home_csc ?
@@WaNteDrv backup all your data and use Csc in order to avoid any bricking and get a clean install replacing the csc will wipe all your data while replacing home csc won't wipe your data but there is always a risk of not getting clean install along with boot loop issue
@@faisalb4 thx 🙏
link not working
I watched the video on flashing using Frija and Odin. I completed all steps but when the phone restarted it came up stating, basically, it did not work and gave me some options to 1. Try again 2. Reset to factory settings and 3. I do not remember the third option.
Do you know what else I can do? The phone is locked on frp mode. Do you think that has anything to do with it? If so, is there a way around it? Or do you know of a legitimate company that will unlock the phone? I am at the point of messing with it, that I am willing to spend a little bit to get the FRP lock removed if that will help.
My current phone is totally broken. I purchased this one because it was cheap and I am broke. Thought I could get it to work.
Thank you for any advice or help.
Great video.
FRP locks are illegal to remove and you need to contact someone who is able to do it with a tool used to remove FRP locks. Flashing new firmware will not remove an FRP lock because the lock is assigned to the phones serial number and has nothing to do with the firmware.
You also need to make sure it's the right hardware, if you're using an exynos model phone and flashing snapdragon firmware, it's going to fail every time, same goes if it's vise versa
@@frozennorthproductions Who is trust worthy to contact to use one of the FRP tools. Almost every application I have looked at seems to be a scam. Thank you for any advice.
Sir, im having UAE version samsung phone (galaxy a10) and is working perfectly in India right now.. Its missing call recording feature. Shall i flash the stock INDIAN rom version ? Or which Rom should I need to select in order to get call recording feature.
Read Somewhere that people are getting network failure issue after flashing, how to avoid it? Pls advice ,
Thanks in advance 🙏
Frija keeps saying error and not downloading firmware. What do I do please? I have a samsung s21 that runs on android 11. it won't update both manually or automatically. I have tried to use frija but frija keeps saying error. Please help me
Thanks dude, just flashed my S22+ using this tutorial. Appreciate it!
Hello Mr. Frozen, Do you have unlocked firmware for S22? thx
Hi Ben, I tried to flash from G998U to G998U1 using the latest XAA firmware (G998U1UES5CVCB). It went through, but after rebooting, it's complaining illegal to update the firmware. The software version changed from ..._VZW/VZW/VZW (One UI 3.1) to VZW/VZW,VZW/VZW (One UI 4.1). But the good things are 1) bloat wares are gone; 2) U did get changed to U1; 3) phone still works. Since the CSC didn't really got changed, could the bloat wares come back the next time it updates through OTA? thanks
BTW, I did used patched Odin (Odin3 v3.14.1_3B_PatcheD) to flash.
Did you use CSC or HOME_CSC? Cause doing from 3.1 to 4.1 using HOME_CSC would likely cause this as it's trying to restore 3.1 data on 4.1 which is impossible. But as long as it's working, you're good. Bloat doesn't get installed from OTA but if any Samsung update bloat. So like, Samsung apps can be bundled in the firmware updates, so you might get Samsung bloat but there's no way to avoid that. However, you could use ADB to remove them and it won't come back after updates cause the phone will already know it has it, it's just uninstalled for the user account and won't force the install again.
@@frozennorthproductions Thanks a lot for the reply. The purpose of this was to 1) remove the Verizon bloat; 2) change CSC so I could use this phone in case I travel to Asia. So I did choose CSC, not HOME_CSC, to flash. What I guessed was that the version 5 firmware has blocked what your tried to do. If I flashed newer 3 or even older 4 firmware (in stead of the latest 5) and converted the CSC first, then either flash to the latest or let the OTA to take care of it, then the result could be different. But now I am on 5 and can't go back to earlier version. Do you have any new idea to change CSC if you're in my shoes? I watched your newer video "stop Samsung update", I hope your problem has automatically been resolved with the latest firmware.
Pretty detailed video. Thank you. Unfortunately even though I followed everything step by step and did not have any problem during the process, the software version still shows the old one on my phone. Any idea why is that?
why odin 3b?
It's patched to bypass a firmware check. I'd you go from a W or U to U1, you'll get an SHA error. So you need the patched version to bypass this to make the firmwares interchangeable between devices.
helo bro im in uae i have samsung s21 ultra 5g G998U At&t career i have usa phone in u.a.e so which csc i used for u.a.e please help me because my navigation is not working properly i check all sensor with softwere all is ok i thnk i changed the csc frimwere to this phone so solve the problem gps is stucking i do any thing but problem not solve once i try this to change scs so help me in uae which csc i used?
I have the note 20 ultra from Canada, unlocked. Im in the US can i flash u1 firmware on it? Im not getting 5g on it
I have this S21 5G (SM-G991U) with T-Mobile logo at the start up. I flashed it to SM-G991U1 and the T-mobile branding is gone which is the good news. However, the bad news is it still does not detect my Canadian SIM Koodo and I am still seeing TMB in the line under software version description in the phone settings. Background: first owner claimed it works with Rogers SIM in Canada. Also, the phone settings shows it is UICC unlocked to support any SIM. Any suggestion to fix this issue?
Flash SM-G991W XAC. G991U1 XAA is for US carriers and some partner carriers will have issues on a US spec firmware. The main Canadian carriers like Rogers, Bell, Telus will all work fine on a U or U1 phone with XAA, but smaller ones like Koodo, Verizon, Chatr, Lucky, etc, those are kind of hit or miss since those generally don't have full 5G support so they usually require a Canadian firmware to work fully.
@@frozennorthproductions I had already flashed it to G991U1 XAA which removed the branding. But I failed to reflash it to G991 variant although I tried different versions of Odo. It gives me a Fail error.
You gotta used PatcheD Odin to bypass the region lock for the SHA256 error.
Odin showed a successful flash, but when my s21 ultra 5g on the uk 3 network restarted, a pop-up appeared stating there was an attempt to change the firmware and it reverts back to the old firmware.
What is blocking the flashing on my phone?
Odin states everything went OK but something on/in the phone refuses the update.
I've tried both the csc files and same thing.
I've tried BTU and BTE for the UK S21 ultra and still no luck!
Any help would be appreciated. Thanks.
My device doesn't want to boot up. Is this possible for such a device. It just turned off and don't want to boot up
Flashing gives error when using U1 firmware on U variant
You have to use 3B_PatcheD Odin, not the regular one. You'll get an SHA256 error with the regular one because this is switching regions, which is not allowed using the normal version.
Do i need to unlock my bootloader when going from u to u1? (vzw to xaa) I cant unlock verizon
I bought a Samsung S21 Ultra renewed, right now it uses Verizon's firmware and I want to flash it to stock Samsung to remove the bloatware from Verizon and get rid of their stuff, as well as to have updates quicker. The sim is unlocked so I'm able to use my ROGERS sim card just fine but I just wanted stock Samsung. Would this work to do that and what firmware should I use then. Also would this work for the latest One UI or is it only an old version of Android. It is the SnapDragon Version, My model is SM-G998U.
Were you able to do this?
Can I flash a sm-g998u1 firmware to sm-g998u device?
Yeah but there's no point, U1 gets updates from Samsung, U gets updates from the carrier. U1 is the better version to be on for US phones.
@@frozennorthproductions
Surprisingly, there is no One UI 6 update for U1, while the U got it. Also in my SM-G998U, there is no OEM Unlock option available in Developer Options. That's why I thought it might be available in U1 version of stock rom.
If I want to have the settings of T Mobile networks can only flash CSC and nothing else? It is that Verizon does not let you select the network mode.
I just flashed from U Verizon to Global U1, but I still have that annoying Verizon network setup.
In short, I cannot select at will between 5G or 4G.
Hello. I have SM-G998N firmware and I want to change it to SM-G998B . Is it possible??? I hope you can help me. Thank you need your answer 😔
N variants are Korea models, you need to unlock the bootloader, flash TWRP. Flash a RMM disable .zip, and THEN you can flash to the B variants. Korean models are locked down so you can't switch so you gotta jump through hoops to make it work, it's easier just to sell it and buy a B model
So what does this mean?? I bought an S21 Ultra directly from Verizon. Am I able to change the firmware or not at all? If I'm able to, will it void warranty? I just wanna know because I want to get the one ui 4 beta when it comes out
Flashing factory firmware does not void warranty, these are official Samsung files.
@@frozennorthproductions Okay so I was trying to download it using Odin and it kept failing. Is there a reason for that?? Because I know I was supposed to download SM-G998U but it just keeps failing to install
Is the phone in the flash mode? And are the USB drivers installed? Using USB 2.0? Check the MD5 to make sure the file isn't corrupted?
We're you able to flash it and get One UI 4? I have a Verizon device as well.
Does this unlock for any carrier?
Wrong kind of unlock. This is firmware from the unlocked model you get I'd you buy a phone directly from Samsung. It doesn't unlock a carrier locked phone. It just changes that you updates come from Samsung and not the carrier so you generally get updates a lot sooner.
This would also remove carrier bloat but as of One UI 4.1 it now downloads carrier bloat as soon as you install a SIM card so the only real thing this does now is let's you get updates directly from Samsung and nothing else anymore.
Alguna rom libre de operador para latinoamerica , soy de peru y ya probe pet, peo, sam, tnt y en todas me sale operador claro tengo la version s21 ultra G998B/DS
If for whatever reason you're a psychopath 🤣🤣🤣
link for odin not working
Thanks, just updated the link to the latest version
Hey I have a TGY (Hong Kong) Snapdragon variant(SM-9980). Can I flash Golbal/US/Canada/ rom ?
No, the Hongkong variant uses different radios so flashing U/U1/W will make it so you won't have any service.
It's not recognizing my verizon sim, do a need to pay someone to sim unlock it from xfinity ? I have trying restarting it with sim in.
Helpful vid, man. Thanks.
I have a s21 Ultra from panama (SM-G998B) and it's exynos.
Do you know if it's possible to switch my firmware for a canadian one? I just moved to Canada and i'm trying to use samsung pay and such but it's not letting me because it's region locked.
If possible, do i just follow your tutorial?
No, you can only use other Exynos firmware. Canada only has Snapdragon.
But with Samsung Pay, just set it up and enter only the numbers from your postal code with 0's at the end.
Like, if your postal code is A1B 2C3, you would enter 12300 and then you confirm the credit card with the prompt and it just works after that.
Lmao Jesus, I think it would be easier to just buy a laptop.
I have an S21 Ultra that's locked to AT&T. Would this help with unlocking the oem unlock or anything like that? If not, what will help with that since I don't have OEM Unlock in my dev settings? (I'm currently on v4, so it might be impossible for now)
This will only flash the Samsung unlocked firmware that doesn't come with carrier bloat apps
@@frozennorthproductions that's fair. I was just hoping there was a way that didn't involve me dumping a couple hundred bucks just to get root access to my phone. But I can say that I have flashed it successfully with unlocked firmware twice. I'm happy about having almost no bloatware.
@@RIPLinkTTV Did you ever get it unlocked to use on other carriers? I have a Verizon unlocked s21 ultra but it wont work on att
@@jakedaily9527 no. Unfortunately, it's a phone that I got from a 3rd party seller and they didn't warn me about it.
@@RIPLinkTTV Same here....
Hi,
I have a Samsung Z FLIP 3, it has the US Firmware and i am getting a message to contact Verizon support whenever i try to put indian sim, does flashing it to the Indian firmware will unlock the device carrier restriction? Its paid off and verizon says its unlocked but i am still getting this error
So I received a refurbished S21+, it is unlocked and all but it has AT&T bloatware and I can't update to oneui 5.0... I live in italy but this phone comes from Germany and apparently has a US AT&T firmware (SM-G996U). I wanted to flash to SM_G996B with ITV, which is the italian version with android 12 and oneui 4.1.1 is it safe to do so and then get the android 13 update the standard way? Could I straight up get android 13 and oneui 5 flashing the most recent rom or is it even worse?
The other solution I thought about is that I could just get the U1 XAA, but i have U for now and I don't quite understand if it's completely risk free or not
Hey man !
I have a complicated question ...
So i bought a s21+ from china it's a us variant snapdragon 888 model n: sm g996u
The issue is that i live in Europe so i can't get ota updates ...
Is it possible for me to flash a French firmware on mine even tho in Europe samsung is using exynos not snapdragon ( i habd no compatibility issues with the mobile networks even 5g) region code on my phone is GCF/GCF,GCF/TMB.
Side question if i can't flash a French firmware can i flash any American firmware with android 13 or u have to stick to GCF firmwares.
Thank you
Hi guy , I have the same phone, how did you do ? I need to do update, please
just a question does it voids warranty or does it trips KNox and software status becomes unofficial?
Can i do this onn G998U?
Maybe it's possible
it works with demo ?
It should as long as it doesn't have an FRP lock
I'm planning to downgrade my Samsung S20 FE from Android 12 to 11 because I'm experiencing stutters and lags. I have questions as this is my first time planning to downgrade. Is the website Sammobile safe and legit? What version of odin should I use? Will it affect my warranty if possible? If some error occurs, will it brick my phone?
You have to use Patched Odin to downgrade, you can find it on XDA, and pretty much any of those firmware sites are legit, they make money from the ads, the files are safe.
Just make sure the baseband isn't upgraded. If it is, you can't downgrade.
When you look at the model number, for me, it's 4BULD at the end. 4 is the baseband, if that's updated to 5 I can't downgrade. That number MUST match in order to downgrade, if it does, you're in the clear. If it's updated, there's nothing you can do to downgrade.
My model is SM-G998B/DS and it keeps dropping WIFI signal 😤 i reset my phone and the router too but still the same. Plz any solutions?
I'm really not too sure, it's hard to pin point without diagnostics. Best I could say is just try it at a friend's place and see if it still disconnects. If it works fine somewhere else. It's your router. If it still drops connection, something is wrong with the phone, or possibly just a bad update. Which you would just need to install the latest firmware, factory reset, and don't restore a backup so all wifi settings are untouched and see if it's fixed.
My samsung s22 sm-s901u can't flashing with firmware sm-s901u1/xaa
Y not, what's the issue
On my first attempt I received a FAIL SHA256 is invalid. What does this mean? It took a while to get my phone to turn back on. I thought it was dead.
You need to use Patched Odin
I have s21 plus 5g smg996u and it is unlocked but always show at&t logo during turn on and turn off and also there are so many carrier unlocked so I want to flesh smg966u1 firmware is possible?
Were you able to do this?
g998b not change csc pak to inu help me
Great Video! Followed directions without any problems. After booting I checked the Service provider software version and it says SAOMC_SM-G998U1_OYM_TMB_12_0036 TMB/TMB,TMB/TMB. Underneath That it now has Carrier configuration version 0.0.0. I tried switching to my network in Network operators but it says unable to connect. Any help would be greatly appreciated.
hi i got s22 its korean if i change firmware to euro it can support esim ?
**Update**
I did move from (T-mobile) U into U1 on my S23 ultra , I used Home_CSC file instead of CSC , Not as mentioned in the tutorial, before I start the process I full backed up my phone , just in case if anything goes wrong , thankfully I didn't need the back-up !!
I did use Odin the patched version , the update is done, I took the risk ,now everything runs prefect and smooth , no any issues found, and all my data kept !!
السلام عليكم يامحمد
Hey @Ben i have Canadadian S21 ultra 5G G998W and i have ATT unlimited plus plan that supports 5G but i only receive LTE+ never seen 5G in USA or CANADA, so do u think if i flash with SM-G998U1 it can work in USA at least for 5G? thanks your the best
Were you able to flash into U1 version?
@@alantsai3453 yes pretty easy
@@velelamja Thank you. So I guess flashing latest U1 firmware using Odin directly?
@@alantsai3453 correct
Canadian 5G uses Sub-6 and US 5G uses mmWave. A Canadian S21 Ultra physically doesn't have the mmWave antennas. Like, inside the phone, there's an empty space where they should be.
So, U1 phone will have 5G in US and Canada with Canadian or US carriers. But a W phone only has 5G in Canada with Canadian carriers.
Unfortunately changing the firmware won't make mmWave antennas magically grow inside your phone. I was pissed when I discovered this while changing the back of my phone to fix a cracked camera lens.
thanks................................................
Is this operation cause the lost of data ( pictures, videos...ect) on my phone,
I want to change mine from Argentina to Frence
If you flash Home_CSC, you will not lose anything, but you will experience bugs later on. It's best to back everything up first and then do this with the regular CSC so you can start over fresh
Can we get Google play store on a Chinese variant Samsung galaxy s21 ultra 5g
Yes, but you have to flash a Google Play specific firmware for the right model phone (snapdragon or exynos)