[Desircustoms]

Just clone the dme with BDM, or change the short ISN at least (still with BDM).
I see you're likely in North America, so you can send it to me or someone to do it. Forget all about soldering or attempted repairs. These DMEs are cheap and plentiful.

Ok thanks, i will buy a BDM, which one do you recommend?
Im in Canada, they're about 120 USD at the scrapyards, and cheaper at the pull yourself yard, so far ive only found a ms45.1

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Yes, that's what I would do, buy a used ECU, unsolder and transfer the flash between them, put it back in the old case with the original stickers.

Which chip is the flash? I will backup my DME with BDM and then ask my friend to fix the hardware.
Thanks

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Yes, that's what I would do, buy a used ECU, unsolder and transfer the flash between them, put it back in the old case with the original Stickers.

I would do the same, forget to repair a BGA chip, if you dont have the right tools. We had so many problems overall the last 4-5 years with BGA chips. I replaced always the whole PCB, not worth the time.

I bought some of the flash types brand new and make always a backup, later I solder the new one in the used ECU.

OK my friend has experience and tools to repair the hardware, wanted to see if its worth trying, and what is usually changed. 
What are the new flash you solder onto the used ECU?
Thanks