Went to flash an 04.5 LLY last night and I got the message in the picture below. So I clicked Alt keys, assume lock may be faulty, try additional unlock strategy, and high speed I attempted to flash i[IMG][/IMG]t again with no avail. I'm hoping its an easy fix, but I'm worried the ecm is done for.
Truck is all stock besides gauges, and a edge insite.
All of my stuff is up to date. Any help is greatly appreciated!