LS1 Flash Chip Programming

**antwon** · 05-28-2016

howed you go with the flash chip did you get it to work as I'm having pre much the same issue as your having tried few different bins and byte swapped both ways and still no go.

**john h** · 05-30-2016

Never had any luck. If you succeed I would appreciate info on what you did.

**antwon** · 05-30-2016

Originally Posted by john h

Never had any luck. If you succeed I would appreciate info on what you did.

yer I worked myn out. I wasn't getting a proper read from original chip and wen I did I byte swapped when I shouldn't and didn't when I was ment to.. pretty much just read the chip byte swap it and try open it with etha older version of hp tuners or efi live as a bin file if it open with one those programs its all good to write to new chip, load it into programming software byte swap the same file u loaded into efi live and burn it to the chip I always burn them at a slower rate to help aid in no stuff ups and than u should be all good

**antwon** · 05-30-2016

also I'm intrested in how you have done the removable chip on the pcm with the pad so close to each other have u got any better piks to share ?

**john h** · 06-01-2016

I used a interconnect board from here http://www.chip-service.de/product_i...0straight.html.
No better pics as of now. Stuff is packed up....I'd have to dig it out.

**beenba** · 11-04-2016

I just recently bought a PSOP adapter for my willem and having some similar issues.

I erased the flash chip, and programmed a good bin file I had read from tunercats. When I soldered the chip back to the board I am not getting any communication with the PCM thru winflash. Soldering looks fine.

I'm not sure of this byte swapping you speak of, is it necessary if the PCM had a original calibration or TC modified cal on it? Thanks

**Montecarlodrag** · 11-06-2016

I answered you PM
The byte swap is needed always to write a BIN that was read/edited using tuning software.
Tuning software uses a binary format different than the one used when the chip is read with a external programmer.

If you read the chip from a working PCM with a programmer and you try to open it in TC it will not open. You need to byte swap it first.
The opposite is also true. If you have a bin saved in TC/Winflash and write it directly to the PCM the write will complete without error but the PCM will not boot. You need to byte swap it before writing it.

Hope this answers your question