Bmw 525 won't start after flash

[adamjay908]

Hi a friend of mine flashed his bmw 525d and it failed now the car won't start and can not read recovery via kess v2 any advice software is 1037390904

[isavrseno]

i think you need to write more details about car and bricked ecu if you want to get better help

[dehacko]

You must use K-tag and bdm frame backu up write. Maybe write ori map and car will start

[erkor]

1.Correct checksum ?
2.Correct Isn ?
3.Synch ecu with Cas (ews).

[adamjay908]

i think you need to write more details about car and bricked ecu if you want to get better help

Basically it was running someone went to remap it they read the file saved it then it failed and woulnt write then everytime they try to use recovery mode it fails and says wake up error

[adamjay908]

Dose anyone have a ori file

[Pyromaniak]

He mean how ecu you have, edc15 or edc16 or ecu number, how we have know how ecu you have in car.

Its edc16CP35

[adamjay908]

i think you need to write more details about car and bricked ecu if you want to get better help


He mean how ecu you have, edc15 or edc16 or ecu number, how we have know how ecu you have in car.

Its edc16CP35

It's the BOSCH EDC16C35 sorry

[jarvismaster]

I think this is a facelift e60 525D, which is EDC16CP35
And no more communicate via OBD

1. You need to remove the ECU, and open.
2. You need KTAG, and BDM frame or just directly solder the wires (or adapter) for the right pins

3. First try to read ECU via KTAG, because you original EEPROM content is important
4. Try to flash again your ECU via KTAG, just the FLASH that previously not worked with KESSV2 via OBD! and try with your car!

5. If this is not help, you need full BDM backup, and write all, but the EEPROM need to edit by someone that can help (your old ISN, Miles, Injector codes etc...)

Or write new ISN to EWS, and SYNC with ECU

[adamjay908]

Probably a daft question but can u remove ews from coding

[erkor]

I have this.
805968

[adamjay908]

Thank you erkor

[Pyromaniak]

make like jarvismater say, ews is in eeprom

[peechie]

I think this is a facelift e60 525D, which is EDC16CP35
And no more communicate via OBD

1. You need to remove the ECU, and open.
2. You need KTAG, and BDM frame or just directly solder the wires (or adapter) for the right pins

3. First try to read ECU via KTAG, because you original EEPROM content is important
4. Try to flash again your ECU via KTAG, just the FLASH that previously not worked with KESSV2 via OBD! and try with your car!

5. If this is not help, you need full BDM backup, and write all, but the EEPROM need to edit by someone that can help (your old ISN, Miles, Injector codes etc...)

Or write new ISN to EWS, and SYNC with ECU

Dont write a OBD FLASH via KTAG...

Also you dont need to edit EEPROM,

Just write BDM FILE TO .FLS with KTAG and sync EWS-DDE/DME

[andrimoto]

I had the same issue with opel insignia, i failed the write and the car couldn't start(with chinise kess). I solved it with recovery option. Connect the car use option recovery and write back the file you read from the car. Good Luck!