I can do

What programmers does it support? Tactrix?
I can try VCM2. clone
pcmhammer failed with it

What about 96-00 PCMs? Any chances?

I've made dump and wiped the flash. There is only one adress required to be filled with s/n. The rest is filled with FF. Then it connects to update software. The main problem is that the microprocessor has its own memory and all update process log is stored there. I'll change change the vin in the d...

So,how to get a correct dump from my chip?

I've read the flash. The Verification can't be passed too after reading I tried to install a new blank chip. Update software gives me S/N =0 After flashing a new chip with original dump (with bad verification) the situation is the same. With the original chip I can see the serial number. And I can't...

It's too late. At first I should have checked what OS is used in the device. But I just changed the vin in the car. It tried to update it, but OS were different. And now it is in "wait" condition if I'm tryin to get back to stock. And I can't update it via pc because the software says that...

Looks like SPI flash from what the datasheet says. Might need to hold the CPU reset line low when trying to read the external SPI flash. It seems that 2 capacitors are requiered. I'll try but if there is sense in it? The device is locked. I dont think that we can make changes in this dump to unlock...

Update!
There is external eeprom
AT45DB321D
All firmware is there
The device can't be identified by PC withou eeprom
I tried to read it with tl866 but I couldn't do it.
Who has a gm hypertech and can try to read eeprom?

Everything that is required is firmware. File for microprocessor. It is read-protected, im sure 99%
I've almost done a trick, but made a mistake and tried to download strategies that differs from Married car.
Anyway getting firmware is the best way