It worked!! I just did it on a 2002 year radio that I installed on a 2005 Trailblazer. gives "Calib Err" message upon turning the ignition on then it goes away. I don't know if it's a checksum error or a problem with the radio it self. everything is functioning properly. thank you!!
Folks, the GM RDS radio receives extra info like the song, band info. Class-2 serial data wakes the radio by Sharing the VIN to prevent theft. A speed signal from the PCM tells the radio how fast you are going. It gently increases the volume as wind noise & road noise increase. Hey, the government wants higher fuel mileage, so even the glass is thinner. The EEPROM stores a lot of info. If you sit the radio on the bench and drive for three weeks, put it back in (Or Changing a Dead Battery) the radio wakes up, goes to your station at the same volume, plus all stored stations are there. The Body Control Modual turns it on and monitors its “State-Of-Health.” If the lights are left on, key is in the ignition or turns signal is on too long, or a “Hands-Free” phone call, it mutes the volume and a tone comes out the left front speaker. If an SIR is deployed & equipped with “On-Star”, the On-Star module has its own battery. A signal is sent and they will ask for you to respond. They call the local police/highway patrol as they have your GPS location and sent help and stay with you until first responders arrive, or if they know the On-Star battery is running low. It is serviced separate from the big normal battery. It may require replacement but it will let you know in advance. Blessing to all! ASE Master since 1978 - Retired
can you send a picture of where that chip is in one of these radios, I can't find any pictures of where the chip is on the board its diffrent to the one found in the silverado's
Followed your process today for someone who brought me a locked radio. They will be here Thursday and I will report back. Thanks for your awesome knowledge!
Jeff, It been two years since you did a video on a GM rear view mirror, but I remember it. I am doing a swap of an 03 Tahoe engine in my 1967 C10. The Tahoe belong to my youngest an hit black ice. He gave me the whole vehicle. Being a retired tech, working at GM dealer plus your video, I changed the mirror as I have no passengers side SIR or seat sensor. For most, the passengers front seat has a bladder that creates pressure a sensor reads. The SIR system decides to turn on or disable the air bag if the weight is roughly less than 42 lbs. (Caution; Any repairs, parts new or used, need to be calibrated at the dealer) The mirror has PASSENGERS SIR - On / Off in mirror that I did not wish to look at. Using two 0.39” feeler gauges, I was able to remove cover, un-clip the mirror dimmer leads and remove the plastic “Appliqué”. I cleaned with wax/grease remover used in painting. Applied two coat of plastic adhesive promoter, light, thin and 12 minutes to dry or flash off. Then two coats of quality flat black was sprayed in the same fashion. LED’s produce very little heat but still could shine thru. I place folded foil over the LED’s in two rows, the a 1/4” foam strip. Waiting over night, I cleaned the mirror and window for compass and temp readings. Placing the now black strip was easy using some sticky on the locating tabs, clipped the mirror leads back on, made sure all was aligned. Snap. Everything works, no scratches and looks like it came out of the box that way. I get one thing done per day Retired! Thanks Jeff!
Sorry I can’t edit mis spelled words. 6’3” big fingers on little iPhone 6. Never owned one but my son sent me one. I just go to my garage everyday, plenty to do and make. Jeff, you gave me a little extra confidence to Get-R-Done! Thanks again. Like / subscribe & learn!
If you turn the ignition to ON rather than RUN, these radios will play normally even with a VIN mismatch. That's something it won't do if you just hook it up to a power supply. I suspect that if the CAN bus serial line is pulled solidly high or low that these radios will play normally until the BCM comes to life as the key is turned to RUN. I don't recall the keys to press, but there is also a multi-key sequence that you can depress to make these radios power up for a short period of time, perhaps as a test. A number of other parameters are stored within the EEPROMs (more than one on the board), such as the type of speaker system to which the radio is attached (2 or 4 speakers, Bose, etc.).
@@imtheman3039 RUclips comment section cancer, thy name is I'm the man. Too bad you're a troll lacking the ability to restrain yourself in the slightest. At least your bedtime will be coming soon.
Damn you can do it all! Auto electronics, game systems, tv’s, nuclear warheads, etc! 😁. I think I might have to send you my GM radio to unlock, as well as the instrument cluster on my car. The climate controls lighting you did, they work awesome! When you get my IP, can you do a video on that? I find your work entertaining to the extreme! Better than most tv shows that are out now
I want to see someone try to unlock a Fiat Dodge Chrysler U connect 8.4 and activate the GPS that is already inside of the unit but you do not get to use it when you buy the U connect 8.4 unless you give them another $700-800.
Only problem with this solution is that even with a the correct part number radio you could still have incorrect software installed. Example is swap between a suburban and a standard cab Silverado. using Tis2Web I can program in the correct vin and correct application software including the updates such as the issues with cd ejecting, no sound, com errors etc.
Exactly. Disappointed that he couldn't test it, because most likely there IS a CRC or at least a basic checksum in the image. Maybe he'll post a follow-up to let everyone know the outcome.
jeffescortlx I did have a bin file from a new radio never installed. And it was all zeros at the vin area. Will have to go back to the bin file and compare them. I remember seeing the presets store points as well back in day when I was doing this a lot. And the XM modules as well we would zero all the content of the serial eprom and it would relearn the vin along with some info from the radio got populated there as well. After 50 ignition cycles it was said to be fully populated and the XM was not programmable from the tech2. Only a new XM module or blank zero eprom module would relearn and function.
@@rick601a I definitely want to try it again. I have had quite a few work for me with inputting the VIN manually, but it certainly would be better to have it set to all zeros' s all ready to go for the next vehicle.
Dam I swear he like a doctor. isn't there a code or something you put in if you change your battery and it messed up radio mine just did this but can't get it running
I don't generally work on car radios, but I noticed several of your videos show you using this magical red tool that has the ability to read and write to EEPROMs. In fact, using it to repair a flat screen was the video that appeared in my recommended list that lead me to subscribe. Reprogramming EEPROMS is on my list of "I need to learn how to do this" items. Would this X100, in your opinion, be a wise purchase if 98% of my solid state repairs are non-automotive devices? Or do you think one would be better of investing in a universal programmer like the TL866? There is quite a price difference and I doubt I would get much use out of the automotive tool. I am leaning toward the TL866 due to cost and the ability to read and write to more packages. What say you?
Good question. Yes the X100 is expensive if all you need to do is read and write eeproms. For you it might not justify the cost. But with the automotive work I do it gets used regularly. It has advantages. It can work completely stand alone from a PC and it has a fairly easy to use user interface. It's also a OBD scan tool to read and erase check engine lights, can odometer correct a nice collection if vehicles, and retrieve codes for Toyota cars and such that need new keys programmed (haven't used that yet) and it can read and write bare eeproms. And has regular updates from the manufacturer (to support new vehicles) 1st year is free.
What a shame you couldn't try it... looked promising. I guess the REAL problem for GM with radio swaps is that allegedly the mileage is in that eeprom :O. I don't get why you can't move the eeprom from the old radio to the new one... as long as the old one isnt locked you would think that would carry everything over and the car would be non the wiser, plus all the calibration and vehicle history would be correct. My radio has bad amplifier, which is on the main board, or else I'd be swapping the board the main boards to bring the EEPROM over.
I've had some people contact me and confirm it did work. You may have made a typo, but the mileage is stored in the cluster eeprom, not radio. If you have a identical radio, I would think eeprom swapping would work.
I read that somewhere about the OD being there.. but yes, it doesn't make sense... no one with an aftermarket would have their OD data! Ha ha. Thanks for the follow up. I am getting a replacement radio and will probably have to try the swap. I also read putting in a blank EEPROM may force the system to reinitialize the EEPROM... that is possible but seems riskier. I bought a clip on SO8 harness for my TL866 programmer so I may not have to physically swap, just read from old write to new. If you are interested I can let you know how it goes.
Thinking a blank EEPROM might be reinitialized is plausible; I've done initialization methods like that in embedded projects. However, it is just as likely that they don't do that... or perhaps some radio implementations do and others don't- the later requiring that the EEPROM contents be established by a production programming process- and thus have no code built in to re-initializing the EEPROM "in the field".
A lot of good radios have been thrown away because of that nonsense. I had an old 88 Mercedes 190 and had to junk the factory radio after making the felonious mistake of changing the battery and not using a 12-volt transformer to maintain power.
Because when this stuff was engineering in the early 2000's, people would have been more than happy to buy a CD player upgrade from the base radio from a pawn shop for hundreds of dollars.
That should be possible... you can use them to flash the BIOS on a laptop (and I've done so to install libreboot on my ThinkPad X200), so I can't think of a reason it wouldn't work on a radio.
I wouldn't expect it to work with the EEPROM removed either, but supposedly... Either it's explicitly coded that way, or the failed read returns 0s or Fs and that works out whatever way.
I'd also suspect that there's code left over that makes it easier to test at the factories or in prototyping phase. If you know the master code, it stops looking; what if that code is all 0s, or whatever the default value is in the register, before being overwritten with EEPROM values. A paraphrased line of code could be "if 000000, assume EEPROM failure or testing".
@@Marc_Wolfe Yes it's possible that there is some sort of master code that allows the radio to write the VIN when it's new. But I haven't researched it or experimented so I'm not sure.
Yes, but then you'll loose the ability to communicate with the serial data. Like the ability to reset oil counter, door/head light reminder dingers will be gone. If you have the Bose amp the new head unit might not be compatible.
@@jeffescortlx nope. Pioneer has RDS double din units for about $300. You can get full capacitive touchscreen, bluetooth, nav, xm... literally anything you want
I worked for GM's radio department back when these were developed. The gag order has expired so I can tell you guys how to unlock these now without any soldering nor special equipment. 1. I assuming the radio is installed and the display says locked. If not then get your radio installed, powered up and to the lock screen. 2. Set the clock to 11:58 or 23:58 3. Use your stop watch, as soon as you set the time you must wait exactly 11 minutes and 58 seconds. As soon as 11 minutes and 58 seconds has elapsed re-set the time back to 11:58 or 23:58. 4. Repeat this 5 more times for a total of 6 cycles. 5. After your 6th cycle make sure the driver door is open, simultaneously press & hold PWR and the number 6. While holding those turn the ignition completely off for 15 seconds. 6. Release the buttons, turn the ignition on for 5 seconds and start the vehicle. 7. The display will still say LOCKED however it's in the last step of unlocking. Now drive the vehicle for 11.5 miles. If you have done the sequence correctly the radio will unlock.
It’s very unlikely this would work. A value of all zeros is still a value, and it wouldn’t match. In order for this to work with any car, someone would have to most likely program in a check to see if the serial is all zeros and then allow it to work. Computers only do what you tell them. If you check for a vin match, if it’s anything other than a match, it won’t work unless someone specifically programs every possible instance.
@@ericspda agreed. But I have heard of a place called AJR that supposedly has a eeprom file they use that will stay unlocked with any VIN. Not sure if it's true, or how they do it.
jeffescortlx It’s probably a simple matter of changing the right value in the right place to entirely stop the check from happening. How you know what that value is, I’m not sure.
jeffescortlx : On a 03- early 07 silverado inst. cluster could you tell me what information is all stored in the atmel eeprom , I know the mileage & engine hrs. are but I have also heard the info. for the optional trans. temp. gauge is stored in there also , is that true ? Also I had a call from a gentleman the other day and we started discussing these styles of clusters and he said the DIC functions are stored in there also and I didn't agree with that so who is right on the DIC functions ? I told him I would shoot you an email because if anybody would know you would . THANKS JEFF AND TAKE CARE !
mark corkery It looks to me Vin, milage, hours and stepper motor factory calibration zero point is stored in the eeprom. If the cluster has no factory trans temp, the factory stepper motor calibration for trans temp will be zeroed out all the way at the bottom point, but will still work. Some information like upgraded dic options are stored in the micro processor. Like the extra trip and fuel milage options.
Hi Jeff have you ever worked on a 02 Express or savana. It has a weird part number for the eeprom and it's not a 25020. I have tried all different types in my reader in and out the circuit bd and it reads nothing . Any guess? Ty Mark
I have been looking for an Eeprom solution for my truck for over a year! Did you ever find out if it worked??! I have a 2007 Silverado Classic and my head unit was stolen. I found a used one from a 2006 Silverado and just completely removed the Eeprom. However, when playing CD's, an album will reset to beginning and presets/equalizer will be lost after each drive cycle. Every time I start the truck, the radio automatically blasts some stupid country station. Very annoying. If this flash does work, where could I find the tools to flash mine? Thank you!
You have to keep in mind, 20 years ago when this stuff was engineered radio theft was a thing. If they didn't do something to help prevent it, everybody would be complaining that GM made it too easy to steal and resell. Just shows sometimes you can never win even when they do what was right at the time.
@@jeffescortlx that doesn't stop anybody from stealing your radio that just stop them from using it your radio still been stolen so it was useless pointless and stupid just like the majority of Chevys.
@@republicansareoffendedeasi821 I'm pretty sure everbody would agree that a radio that can be sold and reused is more likely to get stolen than a radio that nobody else can use.
It worked!! I just did it on a 2002 year radio that I installed on a 2005 Trailblazer. gives "Calib Err" message upon turning the ignition on then it goes away. I don't know if it's a checksum error or a problem with the radio it self. everything is functioning properly. thank you!!
If it is storing station presets and audio settings than it was successful!
Folks, the GM RDS radio receives extra info like the song, band info. Class-2 serial data wakes the radio by Sharing the VIN to prevent theft. A speed signal from the PCM tells the radio how fast you are going. It gently increases the volume as wind noise & road noise increase. Hey, the government wants higher fuel mileage, so even the glass is thinner. The EEPROM stores a lot of info. If you sit the radio on the bench and drive for three weeks, put it back in (Or Changing a Dead Battery) the radio wakes up, goes to your station at the same volume, plus all stored stations are there. The Body Control Modual turns it on and monitors its “State-Of-Health.” If the lights are left on, key is in the ignition or turns signal is on too long, or a “Hands-Free” phone call, it mutes the volume and a tone comes out the left front speaker. If an SIR is deployed & equipped with “On-Star”, the On-Star module has its own battery. A signal is sent and they will ask for you to respond. They call the local police/highway patrol as they have your GPS location and sent help and stay with you until first responders arrive, or if they know the On-Star battery is running low. It is serviced separate from the big normal battery. It may require replacement but it will let you know in advance. Blessing to all!
ASE Master since 1978 - Retired
can you send a picture of where that chip is in one of these radios, I can't find any pictures of where the chip is on the board
its diffrent to the one found in the silverado's
I am amazed at what you know about automotive electronics. I really enjoy watching what you do because your knowledge of older systems.
Followed your process today for someone who brought me a locked radio. They will be here Thursday and I will report back. Thanks for your awesome knowledge!
Jeff, It been two years since you did a video on a GM rear view mirror, but I remember it. I am doing a swap of an 03 Tahoe engine in my 1967 C10. The Tahoe belong to my youngest an hit black ice. He gave me the whole vehicle. Being a retired tech, working at GM dealer plus your video, I changed the mirror as I have no passengers side SIR or seat sensor. For most, the passengers front seat has a bladder that creates pressure a sensor reads. The SIR system decides to turn on or disable the air bag if the weight is roughly less than 42 lbs. (Caution; Any repairs, parts new or used, need to be calibrated at the dealer)
The mirror has PASSENGERS SIR - On / Off in mirror that I did not wish to look at. Using two 0.39” feeler gauges, I was able to remove cover, un-clip the mirror dimmer leads and remove the plastic “Appliqué”. I cleaned with wax/grease remover used in painting. Applied two coat of plastic adhesive promoter, light, thin and 12 minutes to dry or flash off. Then two coats of quality flat black was sprayed in the same fashion. LED’s produce very little heat but still could shine thru. I place folded foil over the LED’s in two rows, the a 1/4” foam strip. Waiting over night, I cleaned the mirror and window for compass and temp readings.
Placing the now black strip was easy using some sticky on the locating tabs, clipped the mirror leads back on, made sure all was aligned. Snap. Everything works, no scratches and looks like it came out of the box that way. I get one thing done per day Retired! Thanks Jeff!
Sorry I can’t edit mis spelled words. 6’3” big fingers on little iPhone 6. Never owned one but my son sent me one. I just go to my garage everyday, plenty to do and make. Jeff, you gave me a little extra confidence to Get-R-Done! Thanks again. Like / subscribe & learn!
Sounds like a pretty cool project you have on your hands!
If you turn the ignition to ON rather than RUN, these radios will play normally even with a VIN mismatch. That's something it won't do if you just hook it up to a power supply. I suspect that if the CAN bus serial line is pulled solidly high or low that these radios will play normally until the BCM comes to life as the key is turned to RUN.
I don't recall the keys to press, but there is also a multi-key sequence that you can depress to make these radios power up for a short period of time, perhaps as a test.
A number of other parameters are stored within the EEPROMs (more than one on the board), such as the type of speaker system to which the radio is attached (2 or 4 speakers, Bose, etc.).
Go fuck yourself, Mr. fucking know it all!
@@imtheman3039 RUclips comment section cancer, thy name is I'm the man. Too bad you're a troll lacking the ability to restrain yourself in the slightest. At least your bedtime will be coming soon.
@@imtheman3039 uxwbill is the man you go fuck yourself bro
+1 uxwbill has more brain in his fingernail than you have in your whole body. Jealous jackass.
+1 for uxwbill also knows his stuff and was sharing helpful info.....sounds like "Im the Man" having bad day go troll some where else
Who doesn't have an e-prom reader?
I dont
Please pray for me
They're inexpensive, you can buy them from the usual scumbags online.
Damn you can do it all! Auto electronics, game systems, tv’s, nuclear warheads, etc! 😁. I think I might have to send you my GM radio to unlock, as well as the instrument cluster on my car. The climate controls lighting you did, they work awesome! When you get my IP, can you do a video on that? I find your work entertaining to the extreme! Better than most tv shows that are out now
I want to see someone try to unlock a Fiat Dodge Chrysler U connect 8.4 and activate the GPS that is already inside of the unit but you do not get to use it when you buy the U connect 8.4 unless you give them another $700-800.
Only problem with this solution is that even with a the correct part number radio you could still have incorrect software installed. Example is swap between a suburban and a standard cab Silverado. using Tis2Web I can program in the correct vin and correct application software including the updates such as the issues with cd ejecting, no sound, com errors etc.
Hold my beer, let me install a double deck DVD player 😎🍺📟📀
Gm locks a radio because its more important than locking a car out from theives. 0_o
same as Opel radio same bs
Swapping EPROMs also works if u had stock radio
Yes. But in this case the current owner of the truck didn't have the original radio.
Not sure why I watched this video but got to about 4:26 and was like NNNNNNNOOOOOOOOOOOOOOOOOOOOWWWWWWAAAAAAAAAHHHHHHHH. UGH LOL.
Damn it.
this is some high level stuff, did you go to school for this or just picked up as a side hobby?
I did go to school for general electronics, but all automotive electronics I have learned is from experience and Google.
So the eeprom data has no checksum, hash or signing data. How primitive.
I wonder if you have to update the crc when you change the vin.
Exactly. Disappointed that he couldn't test it, because most likely there IS a CRC or at least a basic checksum in the image. Maybe he'll post a follow-up to let everyone know the outcome.
If you program all zeros in the vin field. The radio will relearn the vin that it is installed in.
I've read this in old forums. I tried it once and it didn't work. I might have messed something up.
jeffescortlx I did have a bin file from a new radio never installed. And it was all zeros at the vin area. Will have to go back to the bin file and compare them. I remember seeing the presets store points as well back in day when I was doing this a lot. And the XM modules as well we would zero all the content of the serial eprom and it would relearn the vin along with some info from the radio got populated there as well. After 50 ignition cycles it was said to be fully populated and the XM was not programmable from the tech2. Only a new XM module or blank zero eprom module would relearn and function.
@@rick601a I definitely want to try it again. I have had quite a few work for me with inputting the VIN manually, but it certainly would be better to have it set to all zeros' s all ready to go for the next vehicle.
Dam I swear he like a doctor. isn't there a code or something you put in if you change your battery and it messed up radio mine just did this but can't get it running
if you unplug the radio for 30 seconds then shake it then turn it on & off a bunch of times and stab at all the buttons that might work.
Yep, it worked on 2005 chevy express.
Good to hear
I don't generally work on car radios, but I noticed several of your videos show you using this magical red tool that has the ability to read and write to EEPROMs. In fact, using it to repair a flat screen was the video that appeared in my recommended list that lead me to subscribe. Reprogramming EEPROMS is on my list of "I need to learn how to do this" items. Would this X100, in your opinion, be a wise purchase if 98% of my solid state repairs are non-automotive devices? Or do you think one would be better of investing in a universal programmer like the TL866? There is quite a price difference and I doubt I would get much use out of the automotive tool. I am leaning toward the TL866 due to cost and the ability to read and write to more packages. What say you?
Good question. Yes the X100 is expensive if all you need to do is read and write eeproms. For you it might not justify the cost. But with the automotive work I do it gets used regularly. It has advantages. It can work completely stand alone from a PC and it has a fairly easy to use user interface. It's also a OBD scan tool to read and erase check engine lights, can odometer correct a nice collection if vehicles, and retrieve codes for Toyota cars and such that need new keys programmed (haven't used that yet) and it can read and write bare eeproms. And has regular updates from the manufacturer (to support new vehicles) 1st year is free.
I may have another for you.
Can you just use the clip to avoid desoldering? And can you use a usb eeprom reader instead of the tool you used? Thanks.
I don't see why not. You can use any method you want to edit the data.
What a shame you couldn't try it... looked promising. I guess the REAL problem for GM with radio swaps is that allegedly the mileage is in that eeprom :O. I don't get why you can't move the eeprom from the old radio to the new one... as long as the old one isnt locked you would think that would carry everything over and the car would be non the wiser, plus all the calibration and vehicle history would be correct. My radio has bad amplifier, which is on the main board, or else I'd be swapping the board the main boards to bring the EEPROM over.
I've had some people contact me and confirm it did work. You may have made a typo, but the mileage is stored in the cluster eeprom, not radio. If you have a identical radio, I would think eeprom swapping would work.
I read that somewhere about the OD being there.. but yes, it doesn't make sense... no one with an aftermarket would have their OD data! Ha ha.
Thanks for the follow up. I am getting a replacement radio and will probably have to try the swap. I also read putting in a blank EEPROM may force the system to reinitialize the EEPROM... that is possible but seems riskier. I bought a clip on SO8 harness for my TL866 programmer so I may not have to physically swap, just read from old write to new. If you are interested I can let you know how it goes.
I also read that installing a blank eepom would work. I tried it once, it didn't work. I'll try again some day.
Thinking a blank EEPROM might be reinitialized is plausible; I've done initialization methods like that in embedded projects. However, it is just as likely that they don't do that... or perhaps some radio implementations do and others don't- the later requiring that the EEPROM contents be established by a production programming process- and thus have no code built in to re-initializing the EEPROM "in the field".
@@jeffescortlx Is the mileage stored in the ECM also, or only in the cluster?
What temperature do you use to rework
Customers... so unreliable... but what can you do lol? But great video!
Thanks!
How did you identify what specific eeprom you needed to remove? I can't seem to find any schematics for the head unit that I've got. Thanks!
The radios only have one eeprom.
A lot of good radios have been thrown away because of that nonsense. I had an old 88 Mercedes 190 and had to junk the factory radio after making the felonious mistake of changing the battery and not using a 12-volt transformer to maintain power.
That make no sense to me. Why lock them. Why anti theft, and why steal a factory radio!!
Because when this stuff was engineering in the early 2000's, people would have been more than happy to buy a CD player upgrade from the base radio from a pawn shop for hundreds of dollars.
Can you use SOIC clips and program the EEPROM on the board?
That should be possible... you can use them to flash the BIOS on a laptop (and I've done so to install libreboot on my ThinkPad X200), so I can't think of a reason it wouldn't work on a radio.
Did this work for you?
Yes this method works.
Simply change vin? Guessing bcm tell radio it’s good to go then?
@@derekmichael920 I'm not exactly sure of the process, but I've been told this works.
Can you set the vin to all Fs or 0s and it work?
I haven't tried. But I wouldn't think it would work since the radio is looking for a match.
I wouldn't expect it to work with the EEPROM removed either, but supposedly...
Either it's explicitly coded that way, or the failed read returns 0s or Fs and that works out whatever way.
I'd also suspect that there's code left over that makes it easier to test at the factories or in prototyping phase. If you know the master code, it stops looking; what if that code is all 0s, or whatever the default value is in the register, before being overwritten with EEPROM values. A paraphrased line of code could be "if 000000, assume EEPROM failure or testing".
@@Marc_Wolfe Yes it's possible that there is some sort of master code that allows the radio to write the VIN when it's new. But I haven't researched it or experimented so I'm not sure.
You've done more than I have checking that the radio works without the EEPROM.
Be easier to throw a cheap (better than basic stock) aftermarket radio in there.
Yes, but then you'll loose the ability to communicate with the serial data. Like the ability to reset oil counter, door/head light reminder dingers will be gone. If you have the Bose amp the new head unit might not be compatible.
@@jeffescortlx nope. Pioneer has RDS double din units for about $300. You can get full capacitive touchscreen, bluetooth, nav, xm... literally anything you want
Well ain't you the smart one. Impressive
Just out of curiosity, why not just program it with SPS rather than disassemble the radio?
Because I don't have SPS.
The Auto Tech how can i could unlocked my radio from a Silverado2011
Jose Rodriguez dealer does it for 80$
GM Tech II (2) scan tool. Talk to some automotive friends that can get you a deal on one or borrow one.
I worked for GM's radio department back when these were developed. The gag order has expired so I can tell you guys how to unlock these now without any soldering nor special equipment.
1. I assuming the radio is installed and the display says locked. If not then get your radio installed, powered up and to the lock screen.
2. Set the clock to 11:58 or 23:58
3. Use your stop watch, as soon as you set the time you must wait exactly 11 minutes and 58 seconds. As soon as 11 minutes and 58 seconds has elapsed re-set the time back to 11:58 or 23:58.
4. Repeat this 5 more times for a total of 6 cycles.
5. After your 6th cycle make sure the driver door is open, simultaneously press & hold PWR and the number 6. While holding those turn the ignition completely off for 15 seconds.
6. Release the buttons, turn the ignition on for 5 seconds and start the vehicle.
7. The display will still say LOCKED however it's in the last step of unlocking. Now drive the vehicle for 11.5 miles.
If you have done the sequence correctly the radio will unlock.
Not sure if serious or if it's a early April 1st.
If I just remove the eeprom the radio works, right?
It will "work". But no memory functions. Won't remember channel presets or audio settings.
In other words.. yes as well as any GM radio.. lol
Hey I have a question for you.
If you set the Vin number to all zeros
What will happen on these radios
Never tried. But I'd assume it would just stay vin locked since it isn't a match.
I assume that's because it all goes through the CAN-BUS out to the body module, and back. No VIN=no return signal telling the radio to switch on.
It’s very unlikely this would work. A value of all zeros is still a value, and it wouldn’t match. In order for this to work with any car, someone would have to most likely program in a check to see if the serial is all zeros and then allow it to work. Computers only do what you tell them. If you check for a vin match, if it’s anything other than a match, it won’t work unless someone specifically programs every possible instance.
@@ericspda agreed. But I have heard of a place called AJR that supposedly has a eeprom file they use that will stay unlocked with any VIN. Not sure if it's true, or how they do it.
jeffescortlx It’s probably a simple matter of changing the right value in the right place to entirely stop the check from happening. How you know what that value is, I’m not sure.
jeffescortlx : On a 03- early 07 silverado inst. cluster could you tell me what information is all stored in the atmel eeprom , I know the mileage & engine hrs. are but I have also heard the info. for the optional trans. temp. gauge is stored in there also , is that true ? Also I had a call from a gentleman the other day and we started discussing these styles of clusters and he said the DIC functions are stored in there also and I didn't agree with that so who is right on the DIC functions ? I told him I would shoot you an email because if anybody would know you would . THANKS JEFF AND TAKE CARE !
mark corkery
It looks to me Vin, milage, hours and stepper motor factory calibration zero point is stored in the eeprom. If the cluster has no factory trans temp, the factory stepper motor calibration for trans temp will be zeroed out all the way at the bottom point, but will still work. Some information like upgraded dic options are stored in the micro processor. Like the extra trip and fuel milage options.
THANK YOU JEFF !
Hi Jeff have you ever worked on a 02 Express or savana. It has a weird part number for the eeprom and it's not a 25020. I have tried all different types in my reader in and out the circuit bd and it reads nothing . Any guess? Ty Mark
NuWavUSA
are you talking about the radio eeprom or cluster eeprom?
jeffescortlx cluster eeprom from 02 Express it has marking
MO4AV
014
38615
Ty
will this work with and 05 Silverado and a Cal-error and no audio?
I have been looking for an Eeprom solution for my truck for over a year! Did you ever find out if it worked??! I have a 2007 Silverado Classic and my head unit was stolen. I found a used one from a 2006 Silverado and just completely removed the Eeprom. However, when playing CD's, an album will reset to beginning and presets/equalizer will be lost after each drive cycle. Every time I start the truck, the radio automatically blasts some stupid country station. Very annoying. If this flash does work, where could I find the tools to flash mine? Thank you!
Marshall Ruff
Yes, it works.
Mail me your eeprom and I'll change the vin for a reasonable fee. Send me a private message for more info.
Number 1562 reason why not to buy a Chevy. Can't just put a stock radio back in.
You have to keep in mind, 20 years ago when this stuff was engineered radio theft was a thing. If they didn't do something to help prevent it, everybody would be complaining that GM made it too easy to steal and resell. Just shows sometimes you can never win even when they do what was right at the time.
@@jeffescortlx that doesn't stop anybody from stealing your radio that just stop them from using it your radio still been stolen so it was useless pointless and stupid just like the majority of Chevys.
@@republicansareoffendedeasi821 I'm pretty sure everbody would agree that a radio that can be sold and reused is more likely to get stolen than a radio that nobody else can use.
@@jeffescortlx they can still sell like they just do the same thing you just did.
All I can say is Sucks to be him!!!
Or you can use a Chinese gm tech2 to unlock it without taking it apart.
No, you can't with just a GM tech 2. I have one. You need a pass through and subscription to AC Delco.
Seems like alot of work for a shitty stock radio.
I disliked because we never got to see if it worked or not....
Bought not bot
Drag not drayg