I wrote my ecu with an ecutek rom I pulled off a customer car. After writing it to my ecu, I could not write over it using the OFT. I couldn't even write over it using some of Rombinhood's development tools I had access to. This is due to their write protection. The only way to recover my ecu was to borrow the ecutek cable that belonged to the customer who orginally had that ecutek flash license and flash it back to stock using ecutek's stock rom file. After that I was able to do restore my flash back to stock or OFT tune status.
This is why we recommend that all ecutek users flash their ecu back to stock (with ecutek cable) before installing the OFT. Not doing so can introduce an ecutek-induced nightmare. I ended up purchasing another ecu mistakenly as I thought that the ecutek cable wouldn't work in my car due to VIN mismatch. Luckily this was not the case and I now have an extra ecu
