Failed to flash. Now can't start truck.

Just tried to flash the latest tune sent to me by my tuner and got a 'Failed to Start error. I then disconnected and reconnected the battery and tried to start the truck and now it doesn't even attempt to start. Pulled the negative for a few minutes and tried again. Same issue.

Any ideas?

This is on a 2008 Toyota Tundra.

Any luck with this? I have similiar issue, no start. After reading and modding the file, went to write and controller init failed...Attachment 136863

Did you try flashing the stock backup

most probably bricked. you will need a Toyota flasher and try installing a base tune on the bench.