NefMoto

So my ecu seems to be bricked.  I made a very nice bench harness and picked up a power supply today to try to recover it with galletto.  I read the file initially and saved it just as a test.  I then tried to load a stock L box bin into it using boot mode and this is what I'm getting.  It says Seed...ok. And then Erase...ok but everytime it goes to write I get a write error.  I'm stumped.  The bench harness is fully connected obviously and it appears that it is going into boot mode just fine so I am confused why then it keeps having issues writing?  Any help would be greatly appreciated.

What Ecu is it ?

Voltage? I find I get the most consistent results with 15-16. Anything under 14 and it fails nearly every time.

I'm measuring 14.11v.  The box hardware shouldn't make a difference but I believe it's an Mbox (label was scratched where the code used to be).

FWIW I have flashed to this ecu using nefmoto before and it worked great.  Drove I. It for a week without issue.  Then this weekend I swapped in 52lb EV14 injectors and was trying to retune when this happened.  Checksums were verified with MTX.

using Galletto for recovery? I flash me7.1 consistently using an 11.7V supply without issue.

edit:
voltage range matters for Galletto (http://nefariousmotorsports.com/forum/index.php?topic=390.msg2550#msg2550)
voltage range still matters for Galletto (http://nefariousmotorsports.com/forum/index.php?topic=185.msg21061#msg21061)
galletto sucks? (http://nefariousmotorsports.com/forum/index.php?topic=2798.msg27731#msg27731)
bad ecu? (http://nefariousmotorsports.com/forum/index.php?topic=3139.msg31371#msg31371)

Any other thoughts?  It is weird that it was able to read the ecu BIN the first time I connected with galletto in boot mode and now I get nothing.  I'm wondering if the EPROM isn't somehow toast?  Where does everyone source their replacement sockets and EPROMs from if that is the case?

I agree that if you had Galletto success prior to this point, using the SAME setup, then your Galletto/bench setup probably isn't the issue.   

-which leaves me to wonder if a bad eeprom flash can affect a galletto flash, or maybe (as you stated) the eeprom is simply damaged.

Have you tried reading the EEPROM with setzi's utility?

I had a similar issue last night where I flashed a new file on too my spare Ecu and it completely locked up, tried reflashing the EEPROM as I've had this before on the a4 bfb Ecu and it wouldn't read kept giving an f0x02 error..

EEPROM read fine off the board though, and so does the flash chip.. But the car won't start even though the flash is fine...

I hate bfb a4 ecu's.. It's the only one I ever have issues with...

I have yet to see an ECU fail even at 11.8-12V

How can I verify the condition of the eprom?  Where can I get a replacement eprom if it's bad?