If your doing a lot of data recoveries, I would definitely invest in a PC3000 and a DDI 4 disk imager, with the PC3000 you can select or download controller , just desolder the nand and plug directly on to the PC3000 nand reader and as long as you've selected the right controller and the nand is working it should be able to rebuild the data, the DDI would be used predominantly for data recovery from mechanical hard disk
Hello Alex, I wanted to say thank you! I was studying electro-technical school in my country for a very short time but I'm still passionate about it even when I work in a different industry. Watching your videos makes me want to try to work on devices like you but it would take an eternity to get even close to your level! Your videos make me happy! Thanks for being on youtube
try testing the old controller ( broken one ) on the other usb (working one) to understand /know if the nand chip is broken and causing the controller to heat up
I do see a crack but I would imagine that there is still contact metal to metal. Also, being that it's probably a bypass would that make the controller heat up?
I have a good experience in soldering .. I watched almost all videos of yours .. And yeah. I got myself a dead zotac 1060 (6GB) graphics card .. I had learnt the while circuitry from your RUclips channel . I happened to fix it all thanks to you .. A dead capacity had to be replaced and fused 0ohm resistor to be shorted lol will replace it she I get a fine tip but thanks a lot man
Have you ever thought about investing in like a pc-3000 portable iii for recovery. It takes a lot of work, but then you'd be able to do recoveries like this without the controller. As someone that does this as a hobby out of their house it's not feasible because of the price tag. However for a shop owner it might be, if you wanted to get into more data recovery of course.
Maybe the Nand chip from the other one matches is a way??? I dont think its a controller issue. I think its a broken pad or trace. Maybe its possible to switch the NAND chip to the other one that you fixed. Great video as usual 🔝👌👌 Greetings from Austria in Europe🇦🇹🥳🇦🇹
@@ClassicVideos432 What u say is true, but I think if the data is valuable enough for the client, is worth a shot. And since its the same drive, the BGA ball pins and controller should be compatible
Hey man, love your videos :) I think the failed data recovery could have a broken internal layer in the PCB so reballing the NAND and put it on the good board would be worth testing if the fee your charging is decent compensation for your time!
Hi sir....i had been use this technic only swap same IC controler to usb flash you want to backup file.Video you making is good for someone don't know how to do if usb failed.Great job sir....
Greetings. Great question. If the know good chip, IC, reflected and exhibited the same thermal condition that would be sufficient proof that the suspected IC is good.
I have a question! What degree do you have to start fixing electronic? I would like to start looking into my own business, I've always worked with electronics and watching your videos for a while now u have ignited my passion again in the field of electronics
_Alex, since you asked, I suggest that you put the burden on the customer to send you an exact copy of the dead drive, so that you may harvest the controller chip._ _Otherwise, it's a No-Fix._ 👍🏼
NAND chip can be transferred over to the good board...but heat may cause the data loss in NAND chip (they are not so immune to bear heat, their MAX storage temp. is between 150-200 C, during manufacturing recommended temp to reflow chip is about 280-300 C for just couple of seconds ) as you have already reflowed it directly , may be you can reflow it from bottom of board next time if its has single NAND chip.
Enjoyed watching the video. What specifically is the gel like stuff you put on b4 soldering. Re: removing smd's. How do you replace one that has lands under the device with no visible pins? Blessings, John 20:29
I feel both the controllers are same as they have same number. But they are from different manufacturers. Hope swapping the controller chips will solve the problem. Good luck with the data recovery 👍🏾
I would be surprised if switching controllers worked, as the controller stores the bad sectors information and wear levelling information on it. So if you changed the controller the data would be in different locations than the operating system expect. The same would apply if the flash memory was transferred to another device. You may get back some data by doing this but I expect that most of the files so recovered would be corrupted.
I don't recommend swapping different controllers. This can damage the data if the PC attempts to write to it. To recover data directly from NAND/Disks, you would need some equipment and good knowledge of file systems, sectors, cylenders.. etc. It is very time-consuming to decap SD cards, solder NANDs and try to "guess" their sizes, file system, and data patterns. If anyone wants to see, there are some channels that do this like "HDD Recovery Services"
Hi Alex good job, if I'm in error please let me know, the first usb drive, you soldered directly the plug to the resistors. I immagine that you swapped the wrong controller, unless you did change the USB plug another time. Check again maybe I'm wrong. Greetings from Italy
USB not recognized is controller side not flash side. If the flash was bad you would see a device that will be of zero size and most likely set read only. I deal alot with USB to Serial controllers like the ch340 series for robotics projects among other things.
Do you cooled the board down after reflowing it? Nand and Controller chips are monitoring the temperature and shut down if too hot. I am no expert by any means, just a thought
I don't think you can measure resistors, unless one side is lifted. If an other resistor is in parallel, you measure the sum of that circuit part. Ofc this is still good method to compare boards.
There should be a software that can simulate the controller so we can interprete the data from any flash drive memory chip, but that requiers a data base with all the controllers and all the algorithms, that's why the big companies asks a loft of money for theyr recovery software and gear. If someone has a software like that at a decent price i would love to buy it.
That was a nice try, sad that it didnt work. I dont know if its just a serial number or if it is possible that you need exactly the same chip. When there is a short in the chip itself, there is no other way to change it. But i think also that every board from the same manufacture has a chip with another serial. Maybe there was another faulty thing on that board. You could also try to use a reader for the nand-chip but they are not really cheap. But thank you for the video and show us your hard work. Greets from austria
There is a chance that d+ and d- pins are swapped. The donor board had a thru hole type port and the faulty one had an smd type. Right? Or maybe the port type is different and has swapped data pins. As far as i know an unrecognized device has to do with wrong usb protocol
What if instead of transferring the controller chip you transfer the nand chip from flash drive #1 to flash drive #2 that you backed up the files from? That should work
If that USB is formatted for a Linux machine, say ext4 filesystem, Windows definitely wouldn't recognize it, I'm not sure about Apple. I'm fairly sure if it was a filesystem issue, Windows would offer to format the drive, so it's probably not going to help to try it on different systems anyway.
yes place bad cotroller on other one, check also for same heat on the last one. Nice to try a bit more. What power consumption does is take and compare.
Try putting the controller and the nand on the board that the pc did recognize and see if that works. If the nand wasn't working it would come up as a raw drive not unrecognized. I'd say a broken trace in the board or resistor is bad.
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I would once try to use the donor controller chip, since they use same pcb schematic, some companies Use different batch name but sometimes its compactable chip, I recovered a flashdrive 5yrs ago, with same pcb different controller, for final chance used the donor controller with different batch no and Flash drive worked perfectly fine. Controller is responsible for USB detection. If it's showing unrecognized USB on windows, it means Bad controller OR damaged pcb layers. If the Good controller doesn't work on patient Drive, it means that the pcb layer on patient drive is damaged. If usb detected with correct usb name then it could be bad nand or not mounted usb, requires mounting drive letter
You cannot just replace controllers. Each individual controller, even made with the same model and batch, is configured to read and unscramble their NAND chip in a very particular way using An MPTool. If you cannot fix the board, the only other way is to directly read the NAND and unscramble it, which is the expensive part of the process.
If they are from the same batch for the same brand and memory size they should work, the controller is not individually programmed after being installed on a board the firmware is written in a maskrom inside the controller which was programmed during the controllers manufacturing and cannot be changed. Although they do list the sm3257en as supporting in system programming for firmware updates that option would most likely be for the consumer side.
at least drive should show up as insert disk or greyed out disk without drive letter if the controller is working, also with the incompatible controller is should be recognized but with missing size so there may be a problem with the board so you need to transfer the nand and the controller to another board to make sure there are no other broken tracks or shots. also if the controller is heating up maybe its not dead its the nand that is shorted or something else. Also most newer drives the controller is paired with the memory and it scrambles / encrypt the drive so you need software to unscramble it but if the drive is older a controller swap can still work.
Hmm…. Could well be incompatible chips, or it might be that when the original damage occurred, it ate the data on the NAND flash chip; and the hardware is now working but there’s nothing there that the OS recognizes as a formatted volume? 🤔
You cannot just replace controllers. Each individual controller, even made with the same model and batch, is configured to read their NAND chip in a very particular way using An MPTool.
That, board maybe has a broken trace between data pin to controller chip it self. Next step is transplant nand to a donor board, or chip off data recovery, with pc 3000.
I used to have similar problems with drives on Windows machine but when I tried Linux laptop reading from the drive was not a problem. You mentioned you tried on Mac so I think in this case Linux will not read the drive as well but you can at least try :)
Ok why you don,t put the "BAD" in that working board to see if the controller is problem or not? It,s just sugestions who knows maby controller is ok :) Or repleace the chip wrom the bad to the working one make short video :)
Sometimes it can be a software issue from the flash itself but it can be opned by a Linux os like Ubuntu it happened to me once. Im just giving u a pov or an experience ... Just saying
hi king if two flash chip match then doesnt matter controller match if both flash chip match perhaps the wrong is with board switch flash chips didnt solve flash is gone
Follow up video. Flash Drive fixed and one Commenter picked at random won $50. ruclips.net/video/vYGo7xWesUw/видео.html
If your doing a lot of data recoveries, I would definitely invest in a PC3000 and a DDI 4 disk imager, with the PC3000 you can select or download controller , just desolder the nand and plug directly on to the PC3000 nand reader and as long as you've selected the right controller and the nand is working it should be able to rebuild the data, the DDI would be used predominantly for data recovery from mechanical hard disk
Hello Alex, I wanted to say thank you! I was studying electro-technical school in my country for a very short time but I'm still passionate about it even when I work in a different industry. Watching your videos makes me want to try to work on devices like you but it would take an eternity to get even close to your level! Your videos make me happy! Thanks for being on youtube
Just found your channel today and have been up till 2am watching your videos, absolutely brilliant work I had to subscribe 👍🏻 from the UK
try testing the old controller ( broken one ) on the other usb (working one) to understand /know if the nand chip is broken and causing the controller to heat up
Yeh... Great idea 💡.so we
Understand if Chip work.. because we transfer it in good condition USB....but are chance Chip is incompatible
first drive (watch at 4:45) there are 3 capacitors, isn't that left one not soldered?
This is infact correct
Looks like it's not making a connection
Yep looks cracked left hand side.
I do see a crack but I would imagine that there is still contact metal to metal. Also, being that it's probably a bypass would that make the controller heat up?
I also thought the same
Lets bring this comment UP, guys! THUMBS UP
He deals with shorts every day.... but I would be more impressed if he dealt with a tall.
😂😂
Take you comedic talent on to the stage. Quit your job and go on tour. Do it now.
What you should say is you’ll be more impressed if he dealt with a pair of pants
Nice one
You do show continuity on the ground pin, but at 2:42 the solder looks cracked (top of the screen), so maybe not a solid connection?
I have a good experience in soldering .. I watched almost all videos of yours .. And yeah. I got myself a dead zotac 1060 (6GB) graphics card .. I had learnt the while circuitry from your RUclips channel . I happened to fix it all thanks to you .. A dead capacity had to be replaced and fused 0ohm resistor to be shorted lol will replace it she I get a fine tip but thanks a lot man
👍
Enjoy your repair bro
Have you ever thought about investing in like a pc-3000 portable iii for recovery. It takes a lot of work, but then you'd be able to do recoveries like this without the controller. As someone that does this as a hobby out of their house it's not feasible because of the price tag. However for a shop owner it might be, if you wanted to get into more data recovery of course.
Maybe the Nand chip from the other one matches is a way??? I dont think its a controller issue. I think its a broken pad or trace.
Maybe its possible to switch the NAND chip to the other one that you fixed.
Great video as usual 🔝👌👌
Greetings from Austria in Europe🇦🇹🥳🇦🇹
the controller is configured with specific NAND chip, also doing BGA is hard job and success rate in this case is very low so no use here
For me i dont change the controler i move the memory to the one that was working and check
@@ClassicVideos432 What u say is true, but I think if the data is valuable enough for the client, is worth a shot. And since its the same drive, the BGA ball pins and controller should be compatible
Hey man, love your videos :) I think the failed data recovery could have a broken internal layer in the PCB so reballing the NAND and put it on the good board would be worth testing if the fee your charging is decent compensation for your time!
thanks so much. It feels good to see two repairs.
Fixing every defective stuff with smile. Awesome!
Hi sir....i had been use this technic only swap same IC controler to usb flash you want to backup file.Video you making is good for someone don't know how to do if usb failed.Great job sir....
Is the transplanted controller chip also heating up under the IR camera like the old one?
yes I'm thinking the same too
Good point.
Excellent question
Greetings. Great question. If the know good chip, IC, reflected and exhibited the same thermal condition that would be sufficient proof that the suspected IC is good.
I have a question! What degree do you have to start fixing electronic? I would like to start looking into my own business, I've always worked with electronics and watching your videos for a while now u have ignited my passion again in the field of electronics
_Alex, since you asked, I suggest that you put the burden on the customer to send you an exact copy of the dead drive, so that you may harvest the controller chip._
_Otherwise, it's a No-Fix._ 👍🏼
Loving this video even if I haven’t watched it yet. You’re a guarantee Alex!! Bravo!
NAND chip can be transferred over to the good board...but heat may cause the data loss in NAND chip (they are not so immune to bear heat, their MAX storage temp. is between 150-200 C, during manufacturing recommended temp to reflow chip is about 280-300 C for just couple of seconds ) as you have already reflowed it directly , may be you can reflow it from bottom of board next time if its has single NAND chip.
Swap the NAND from the first board, to the now working second board. (Assuming the nand is the same)
4:43 Capacitor is not making a good connection!!!!
You're right, the solder is fractured, but he aplied heat to the controller possible reflowing that capacitor, but I still would go back and check it
Enjoyed watching the video. What specifically is the gel like stuff you put on b4 soldering. Re: removing smd's. How do you replace one that has lands under the device with no visible pins? Blessings, John 20:29
Love watching your videos. Blows my mind how skilled you are, you really do make it look easy. Keep up the fantastic content
And best tool you can have make job easier
I do not know your name but have been watching your channel for a long time and want to say thank you
I can see a crack in the solder of the capacitor at 4:44
Might be worth checking
Regards
I see you working on holydays. Please discuss it with Big Boss, I don't want to see you quitting or burned out.
1st flash drive have a cap which is not proper solder. 04:44 time
I feel both the controllers are same as they have same number. But they are from different manufacturers. Hope swapping the controller chips will solve the problem. Good luck with the data recovery 👍🏾
soooper👌😍❤❤
Shaina you won 50$
Congrats u got 50$
Congratulations shaina you won $50, watch the new video
Shaina Congrats on the Win. $50 Kittiyo?
@@osbertotabor803 thank you
I would be surprised if switching controllers worked, as the controller stores the bad sectors information and wear levelling information on it. So if you changed the controller the data would be in different locations than the operating system expect. The same would apply if the flash memory was transferred to another device. You may get back some data by doing this but I expect that most of the files so recovered would be corrupted.
I don't recommend swapping different controllers. This can damage the data if the PC attempts to write to it.
To recover data directly from NAND/Disks, you would need some equipment and good knowledge of file systems, sectors, cylenders.. etc.
It is very time-consuming to decap SD cards, solder NANDs and try to "guess" their sizes, file system, and data patterns.
If anyone wants to see, there are some channels that do this like "HDD Recovery Services"
You gave it a good shot though!
I'll try moving the NAND to the working board.
I though the same.
Hi Alex good job, if I'm in error please let me know, the first usb drive, you soldered directly the plug to the resistors. I immagine that you swapped the wrong controller, unless you did change the USB plug another time. Check again maybe I'm wrong. Greetings from Italy
Transplat memory nand! Great job, greetings from Mexico.
Nice job when u are working tell us on what temperature and air speed u are working thanks
Nice work 👍
4:43 hello Alex, the solder of the 1 capacitor next to the resistor is broken.
USB not recognized is controller side not flash side. If the flash was bad you would see a device that will be of zero size and most likely set read only. I deal alot with USB to Serial controllers like the ch340 series for robotics projects among other things.
I never saw you make a video on hard drive data recovery.
Usually the D+ USB line has a pullup resistor that is around 10k-1M Ohms. So that looks good to me.
Great work, no one can do it like you.
how do you know ? do you know only the guy who fix things ?
Do you cooled the board down after reflowing it? Nand and Controller chips are monitoring the temperature and shut down if too hot.
I am no expert by any means, just a thought
I don't think you can measure resistors, unless one side is lifted. If an other resistor is in parallel, you measure the sum of that circuit part. Ofc this is still good method to compare boards.
There should be a software that can simulate the controller so we can interprete the data from any flash drive memory chip, but that requiers a data base with all the controllers and all the algorithms, that's why the big companies asks a loft of money for theyr recovery software and gear. If someone has a software like that at a decent price i would love to buy it.
That was a nice try, sad that it didnt work. I dont know if its just a serial number or if it is possible that you need exactly the same chip. When there is a short in the chip itself, there is no other way to change it. But i think also that every board from the same manufacture has a chip with another serial.
Maybe there was another faulty thing on that board.
You could also try to use a reader for the nand-chip but they are not really cheap.
But thank you for the video and show us your hard work. Greets from austria
Helow nice job i keep watching all your video i love it more more videos im in Philippines
There is a chance that d+ and d- pins are swapped. The donor board had a thru hole type port and the faulty one had an smd type. Right? Or maybe the port type is different and has swapped data pins. As far as i know an unrecognized device has to do with wrong usb protocol
since the two drives are the same, could you transfer the memory chip over to the working one rather than swap the controller chips?
Better than watching Dexter,
I think the USB port DM DP are not matching
What if instead of transferring the controller chip you transfer the nand chip from flash drive #1 to flash drive #2 that you backed up the files from? That should work
If that USB is formatted for a Linux machine, say ext4 filesystem, Windows definitely wouldn't recognize it, I'm not sure about Apple. I'm fairly sure if it was a filesystem issue, Windows would offer to format the drive, so it's probably not going to help to try it on different systems anyway.
yes place bad cotroller on other one, check also for same heat on the last one. Nice to try a bit more. What power consumption does is take and compare.
Capacitor not making a good connection joint is broken on the first flash drive
Agreed. Behind the usb connector. Opposite side
Yep
If you tried the thermal camera to see if the temperature is still high, the problem may be in the internal memory
i think you should do a RAW dump of the memory chip (dumping a SLC NAND Flash with Atmel PMECC)
Try putting the controller and the nand on the board that the pc did recognize and see if that works. If the nand wasn't working it would come up as a raw drive not unrecognized. I'd say a broken trace in the board or resistor is bad.
I would have moved the nand instead of the controller.
Nand is serialized to controller so this doesnt makes sense
@@walixeikh4191 Only on early model flash drives that contained encryption information. Later models that don't have onboard encryption... nope.
Rather than taking controller from good board, is it not possible to take nand from bad board to the good one? 🤔
There was a bad joint on a capacitor on the first usb drive. Also i have seen people use nand chip readers for data recovery
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ground pin is not soldered at 2:33
I saw this too. It wiggled.
Don’t people keep backups anymore? I’m noticing an awful lot of data recovery jobs… 🤔
@asdrubale bisanzio Once upon a time…
Cap @ 4:31 looks to have a bad solder joint.
I would once try to use the donor controller chip, since they use same pcb schematic, some companies Use different batch name but sometimes its compactable chip,
I recovered a flashdrive 5yrs ago, with same pcb different controller, for final chance used the donor controller with different batch no and Flash drive worked perfectly fine.
Controller is responsible for USB detection. If it's showing unrecognized USB on windows, it means Bad controller OR damaged pcb layers.
If the Good controller doesn't work on patient Drive, it means that the pcb layer on patient drive is damaged.
If usb detected with correct usb name then it could be bad nand or not mounted usb, requires mounting drive letter
4:45 there is a cracked solder joint, doubt it will affect it but it might.
You cannot just replace controllers.
Each individual controller, even made with the same model and batch, is configured to read and unscramble their NAND chip in a very particular way using An MPTool.
If you cannot fix the board, the only other way is to directly read the NAND and unscramble it, which is the expensive part of the process.
If they are from the same batch for the same brand and memory size they should work, the controller is not individually programmed after being installed on a board the firmware is written in a maskrom inside the controller which was programmed during the controllers manufacturing and cannot be changed. Although they do list the sm3257en as supporting in system programming for firmware updates that option would most likely be for the consumer side.
at 4:43 a cracked solder on one side of the cap which goes to the controller ic, may could be an issue
You are great
Can you try putting the controller back onto the good working board, then swap over the nand and see what happens?
On the first one, are you sure that white fuse wasn’t blown? Looked like it had a solder ball/hole in it
It is a LED, not a fuse. D2 marking next to it.
good job
Your my morning time vice a little north ridge fix in the morning with my coffee
maybe the nand chip has short and it is feeding back to the controller and that will make it hot.
at least drive should show up as insert disk or greyed out disk without drive letter if the controller is working, also with the incompatible controller is should be recognized but with missing size so there may be a problem with the board so you need to transfer the nand and the controller to another board to make sure there are no other broken tracks or shots. also if the controller is heating up maybe its not dead its the nand that is shorted or something else. Also most newer drives the controller is paired with the memory and it scrambles / encrypt the drive so you need software to unscramble it but if the drive is older a controller swap can still work.
Which model thermal cam is that?
Hmm…. Could well be incompatible chips, or it might be that when the original damage occurred, it ate the data on the NAND flash chip; and the hardware is now working but there’s nothing there that the OS recognizes as a formatted volume? 🤔
You cannot just replace controllers.
Each individual controller, even made with the same model and batch, is configured to read their NAND chip in a very particular way using An MPTool.
Yeah, but what if the controller chip AND the NAND chip went bad too?
It looks like one of the capacitor has a bad connection on the first USB device.
cold/cracked joints all over the first flash drive.
No doubt you have a steady pairs of hands
Why not try nand chip on another working flash drive....?
what about trying to put the controller chip back on the board you backed up,and move the nand chip to that board also.just an idea
That, board maybe has a broken trace between data pin to controller chip it self. Next step is transplant nand to a donor board, or chip off data recovery, with pc 3000.
I used to have similar problems with drives on Windows machine but when I tried Linux laptop reading from the drive was not a problem. You mentioned you tried on Mac so I think in this case Linux will not read the drive as well but you can at least try :)
For experience place the cheap 1 on the Healthy flash drive to see is working.
If it's worked then both are the same.
Goooooood work, i think you should make clases electronics, i would pay for that!, it will be a good ingress for the shop btw
Just watch his videos. Free!!
A technician also needs to learn schematics and learn theory that it's what i mean
Ok why you don,t put the "BAD" in that working board to see if the controller is problem or not? It,s just sugestions who knows maby controller is ok :) Or repleace the chip wrom the bad to the working one make short video :)
Sometimes it can be a software issue from the flash itself but it can be opned by a Linux os like Ubuntu it happened to me once.
Im just giving u a pov or an experience ... Just saying
Can you move the nand chip to another board?
You could transfer the nand to the working drive
Try the controller from the other board anyway maybe you get lucky I have before
it looks like u have a broken solderjoint on the first cap from left side 4:38
Try and connect to a USB 1 or 2 , if 3 don't work , I had a drive that would not boot from USB 3 , but booted from USB 2
the best solution is to replace the emmc from non fix flash drive to the one you fixed
What if the nand chip is transfer to the working one
the controller is configured with nand chip. so doesn't makes sense
@@ClassicVideos432 i see thanks
also transferring the nand chip would require reballing
There’s chip off but requires lots of equipments and software and experience
I would try to swap the nand over to the donor maybe the pcb is bad
hi king
if two flash chip match then doesnt matter controller match
if both flash chip match perhaps the wrong is with board switch flash chips
didnt solve flash is gone