Search found 7 matches

by Francuzzz
Tue Apr 19, 2022 2:11 pm
Forum: US ALDL ECUs
Topic: GM HMI 2.5 Fault... "waiting for Update Media"
Replies: 5
Views: 6357

Re: GM HMI 2.5 Fault... "waiting for Update Media"

Thank you, I saw this bulletin. It doesn`t disappears after 80 minutes. Tried it. It only become black. But you can`t programm it because it. ((( I think only replacing will finish this problem
by Francuzzz
Thu Apr 14, 2022 2:24 am
Forum: US ALDL ECUs
Topic: GM HMI 2.5 Fault... "waiting for Update Media"
Replies: 5
Views: 6357

GM HMI 2.5 Fault... "waiting for Update Media"

Good evening. The problem is the following. 2018 Chevrolet Tahoe car. The HMI unit has stopped working. Constantly issues the inscription Waiting for Update Media. And that's it. Nothing canbe done. Diagnostic equipment does not see this unit. Therefore, it cannot be reprogrammed through the techlin...
by Francuzzz
Sat Jul 10, 2021 4:37 am
Forum: Engineering and Reverse Engineering
Topic: GM E38 E67 E40 Kernel/Bootloader Development Extravaganza
Replies: 676
Views: 398149

Re: GM E38 E67 Kernel/Bootloader Development Extravaganza

Curiosity got the better of me so I put one of these E38's in the mill. Do I need to keep going or is this the flash? Looks to be a Spansion s29cd016j0mqfm01. So, where's the "reset, boot mode" pin? :lol: or is it accessible from the bottom removable cover? image0.jpeg image4.jpeg I got t...
by Francuzzz
Sat Jul 10, 2021 4:27 am
Forum: Tool Development
Topic: VZ to VFII E38 controller programming info
Replies: 15
Views: 17919

Re: VZ to VFII E38 controller programming info

Now after going through all that & wasting a week or so(but would still like to find out how to do it for future reference) I eventually thought I have no other options so had a good E38 controller here & made some modifications to the wiring connector to make a quick swap harness, I used t...
by Francuzzz
Sat Jul 10, 2021 4:02 am
Forum: Tools
Topic: PowerPCM_Flasher: my tool for E38 and E67
Replies: 254
Views: 261677

Re: PowerPCM_Flasher: my tool for E38 and E67

Thank you for your answer! I will try to look for additional detailed information on this matter. The old ecu had to open the lid, unsolder all the legs in order to get to the back side of the board and reflash the information through the programmer. But this is a rather long process.
by Francuzzz
Fri Jul 09, 2021 3:29 am
Forum: Tools
Topic: PowerPCM_Flasher: my tool for E38 and E67
Replies: 254
Views: 261677

Re: PowerPCM_Flasher: my tool for E38 and E67

Hello! Thank you for this prog. Today tried it with Delco E38 and MDI, working good. I have one question, may be you know how to restore ECU after flashing with wrong OS or wrong year. ECU works now, but you can`t read or flash it. is there any way to recover, without soldering the flash chip from t...