LS1 Flash Tool Released

**antus** · 08-16-2013

Well, the duramax just happened to work. You can try a black box PCM, but Its an early enough generation that I do not expect it to work. I wont say never for write support, but at this stage it will only be if the pcms happen to be compatible with the 0411. Register interest in this thread though.

**EagleMark** · 08-19-2013

I have a 1998 Vortec Black Box PCM here on the bench so I gave the Flash tool a test. 98-00 are same although they do have several OS. Looks to be working but seed/key issue? Here is what I got. If you'd like to add this just walk me through what is needed.

Init:
AVT device reset ok
Model: 852
Firmware: 1.1
Identify:
AVT device reset ok
AVT VPW mode ok
Set AVT filter
Received OSID: 16263425
Failed to read block 8
Received Calibration ID: 0
Failed to read block 7
Received PCM Serial No: QC724786
Received VIN: 2GCEC19RXW1123841
Received BCC: CCSF
Received MEC: 0
Disable message transmission accepted
Calculated Key: D4F6
PCM Failed to Unlock

Also with the first flash test software you sent I used the Identify PCM and got this.

TX: F1 A5
Avt device reset ok
TX: E1 33
Avt VPW mode ok
Set AVT filter
Successful read of block 10
Received OSID: 16263425
Failed to read block 8
Received PCMID: 0
Successful read of block 5
Successful read of block 6
Failed to read block 7
Successful read of block 7
Received PCM Serial No: QC724786
Successful read of block 1
Successful read of block 2
Successful read of block 3
Received VIN: 2GCEC19RXW1123841
Successful read of block 20
Received BCC: CCSF
Successful read of block 160
Received MEC: 0

**Playtoy_18** · 08-19-2013

If you had a spreadsheet listing the security,read and program algorithim for most all the OSID's from 1996 up to last few years V6/V8 would that help any?
I have a file that looks really helpful,but I haven't broke thru that ah-ha moment with the adx/vdf's for it to be of any use to me yet.

**antus** · 08-19-2013

I should be able to work it out without that. I have PMd eaglemark so we can do some testing.

**antus** · 08-20-2013

V1.05 has been released. It can unlock black box pcms and display your seed/key, but they have been found to be incompatible so no read support at this stage.

Ive also set the virtual serial speed to match the serial avts, so its possible they might work now. I'd be interested in any reports from anyone who can test.

The read speeds have also been improved.

**Six_Shooter** · 08-22-2013

Colour me as interested. :D

I don't have a cable currently, but will look for one, unless you think a beta unit of yours will be available soon? I've been wanting to get into OBDII PCMs, but the expensive software has kept that from happening. I also haven't been able to decide on which software is the best to get...

**Lextech** · 08-22-2013

Originally Posted by Six_Shooter

I've been wanting to get into OBDII PCMs, but the expensive software has kept that from happening. I also haven't been able to decide on which software is the best to get...

If your choice is between HPTuners and EFILive---I would recommend EFILive. I don't like HPTuners tune credit setup or their VIN/OS match. With HPTuners the year of the OS has to match the year of the VIN. If it doesn't you can't read or write to the ECM. So, for retrofit projects that must have the vehicles VIN---HPT is out. It also appears that you can't modify a calibration unless you license it. So, if someone wants to send you a tune to look at, you can't edit that tune unless you license it for 2 credits. I don't own HPT but, that is how I understand it.

Jeff