antus wrote: ↑Mon Jun 02, 2025 7:58 pm try setting a user defined key of 0000

It worked. Parameter sector restored.

Thank you.

So I got another 2001 LB7 with the corrupt parameter sector. I was able to reflash it with SPS after hitting the boot pin, but parameter section still seems off, only the VIN got fixed. I tried flashing a good known flash with PCM Hammer, but it keeps failing. [04:22:27:881] PCM Hammer 2.00-Preview ...

Well, I just got another 15951589 BCM and I tried to change the VIN via command and the change wasn't allowed. I suspect it has something to do with the calibration version rather than a part number. On P/N 15802491 I was able to change the VIN via the command. I have never had to desolder it chip c...

I have never had to desolder it chip clip works fine in place. Weird. I tried reading it with a clip, tried it with a pogo probe, and it would return garbled data all the time. Maybe it's different from part number to part number. Interesting I wonder why the 7b/3b didn’t work for me probably the e...

You can’t change the vin on the bcm via mode 7b/3b commands it’s not supported. You can as I have done write a custom kernel download to the bcm, then up run it to download a new vin to the bcm. Or you can simply replace or reprogram the eeprom with a new vin Some BCMs actually allow you to change ...

Has anyone tried changing the VIN in the BCM using VPW commands? I get security access denied when I try to change the VIN. Does it not support the VIN change or it requires some other access level? Send: ATSH 6C40F1 OK Send: 3C 03 7C 03 31 35 36 34 31 36 Send: 2701 67 01 C6 E5 Send: 2702B061 67 02 ...

Probably, to make E54 work you need 2024-08-31 (last 2 days) and only 1 other person than myself has it. But it turned out we had a bad vx-diag test interface and I made more changes in my working copy attempting to solve that, but pcmhammer was fine and the extra changes broke it again. Now I need...

You dont have the current development / test version. The public version is a long way behind. We got the first successful E54 Calibration write just last night. Is 824.0 2023-10-06 the latest publicly available test version? Tried flashing an E54 PCM with it after successful full read, I get "...

Seems like file checksum checker not working for LB7 flashes. Keep getting this [10:13:16:878] C:\GM\15063375.bin [10:13:16:895] Validating 512k file. [10:13:16:938] Start End Stored Needed Verdict Segment Name [10:13:16:961] 00000 00000 0000 FF01 BAD Operating system [10:13:16:976] 00000 00000 0000...

When we get E54 working in PCMHammer, you should be able to use the boot pin and do a recovery flash to clone in a full bin and restore it to a factory state you can work with in other tools. Some of the code is in there but it is not working yet. If you are prepared to help test let me know and I'...