I have had my PCM running OS 02020003 tuned with my V2 for a couple of years. Yesterday I reflashed it to a stock 12212156 OS. It flashed fine. Later I tried to reflash it and I get a bootloader error "Controller has returned to normal operation" and the flash fails. I tried low speed flash and recovery flash and still nothing. Years ago I had a no flash condition with my V1 and for some reason the serial number went to all 0s. That is NOT the case here. I read the serial number and it matches the number in my license section. What should I try next?

Jeff