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+--- Thread: EDC15VM 4B2 907 401 Write problem (/showthread.php?tid=89891)
EDC15VM 4B2 907 401 Write problem - sivyx - 09-03-2024
Hi. I feel dummy to write here about problem with edc15.. I have problem to write it on bench.. Flash is am29f400. Read by all tool ok kess, mpps, foxflash, boot with mpps. But cant write, stop on 0% and didnt make any change in flash, eeprom r/w ok.. Tried flash mod(immo off) and orginal. And i misplaced sop44 adapter:/ Mayby someone have any idea?? THX
RE: EDC15VM 4B2 907 401 Write problem - CenturionM - 09-03-2024
(09-03-2024, 16:43 PM)sivyx Wrote: Hi. I feel dummy to write here about problem with edc15.. I have problem to write it on bench.. Flash is am29f400. Read by all tool ok kess, mpps, foxflash, boot with mpps. But cant write, stop on 0% and didnt make any change in flash, eeprom r/w ok.. Tried flash mod(immo off) and orginal. And i misplaced sop44 adapter:/ Mayby someone have any idea?? THX
I had such a problem when the ecu was killed by uploading the wrong map
RE: EDC15VM 4B2 907 401 Write problem - sivyx - 09-03-2024
ECU is not killed. It have comm with diag..
RE: EDC15VM 4B2 907 401 Write problem - CenturionM - 09-03-2024
(09-03-2024, 17:46 PM)sivyx Wrote: ECU is not killed. It have comm with diag..
the only thing left to do is desolder the memory and insert the batch using the programmer, these drivers are extremely strange
RE: EDC15VM 4B2 907 401 Write problem - sivyx - 09-03-2024
Like i said i misplace sop adapter:/ I did it a lot in past.. Never had any problem... I was think mayby immo block writing, but in boot it should write anyway,,
RE: EDC15VM 4B2 907 401 Write problem - dimitar - 12-03-2024
First generation of edc15v had intel procesor with 29f400bb flash , imposible to write via obd ( very rare ecus)..........after that came edc15v+ edc15p and so on based on infineon c167 procesor and 29f400/800 psop44 flash , reading and writing via obd without problem
BTW what does it mean " i misplaced the psop adapter"???. You desolderder flash and programmed on table with a programmer??
If your ecu is based on c167+29f400 than you have a faulty ecu
RE: EDC15VM 4B2 907 401 Write problem - CenturionM - 12-03-2024
(09-03-2024, 16:43 PM)sivyx Wrote: Hi. I feel dummy to write here about problem with edc15.. I have problem to write it on bench.. Flash is am29f400. Read by all tool ok kess, mpps, foxflash, boot with mpps. But cant write, stop on 0% and didnt make any change in flash, eeprom r/w ok.. Tried flash mod(immo off) and orginal. And i misplaced sop44 adapter:/ Mayby someone have any idea?? THX
I already remembered how to solve the problem
when downloading and uploading, a 10kohm resistor on pins 2 and 10 of the eeprom
RE: EDC15VM 4B2 907 401 Write problem - sivyx - 12-03-2024
(12-03-2024, 20:27 PM)dimitar Wrote: First generation of edc15v had intel procesor with 29f400bb flash , imposible to write via obd ( very rare ecus)..........after that came edc15v+ edc15p and so on based on infineon c167 procesor and 29f400/800 psop44 flash , reading and writing via obd without problem
BTW what does it mean " i misplaced the psop adapter"???. You desolderder flash and programmed on table with a programmer??
If your ecu is based on c167+29f400 than you have a faulty ecu
Thx. i misplaced somewhere the sop44 adapter and I don't have anything to put flash on programmer. I ordered new one..
Flash is am29f400bt-90se and i tried too with boot 24pin to ground..
And what you mean faulty ecu?? Brick?? I have communications with diagnostic. Flash don't have any change is like on first read
Quote:I already remembered how to solve the problem
when downloading and uploading, a 10kohm resistor on pins 2 and 10 of the eeprom
Thx Centurion i will try..
RE: EDC15VM 4B2 907 401 Write problem - dimitar - 13-03-2024
The flasher thru obd injects bootloader in c167 ram in order to pull pin pol.4 low (pin24 on flash) in order to execute erase and write comands....if the hardware is faulty it doesnt pull the pin 24 low and doesnt erase flash no matter you have diagnostics or no
Try grounding the 24th pin of the flash to gnd before executing comands.....if that doesnt work probably a faulty flash then,,,,,,i usualy desolder those and do them with my beeprog. 10 min job
I have even encountered faulty flash memories which cant be erased even with a programer
Post a picture of your ecu hardware