I recently bought a abox ecu with a MTM tune in it stage 1 from what I am told. I desoldered the chip however it looks to be a 29F800TA rather than the 29F800BB or BT.My GQ-4X programmer does not list this chip under supported devices.Anyone have any ideas how I can read this chip??I have a read from this chip before desoldering which was done on the bench,it's been posted and a couple of people have said the read is no good.But in comparison to what the values i am getting now its eems as the old read had the right values in the right place.any tell me what they use to check if the file is any good??Other than cmd.exe based programs that have been posted??

I did have a board with the chip and encryption chip on the board.I desoldered the chip from the board.The chip i have is not an original amd 29F400BB but a 29F800TA made in malaysia.

I hear ya  only reason why i desoldered was because the ecu is burnt up and i wasnt able to get it into boot mode or communicate with it.