I've tried to write my tune to the car through Mpvi2 and having trouble Calibrating and writing. Just at the end of the flash I get a Failed
Controller Unlocker X35 Invalid Key?
I think this could happen after ignition off the car in the middle of write process by mistake.
I might brick the ECU as the car. is restarting ECU would solve the problem????
Any help would be appreciated. Cheers
Last edited by hrori; 11-03-2023 at 02:38 PM.
X35 & X36 errors are typically due to a tunerlocked ecm
It doesn't have to be perfect, it just needs to be done in two weeks...
A wise man once said "google it"
How to resolve this error then
I like to add that I have read the same vehicle last week and write a tune successfully.
But, I tried to write a new tune again yesterday and this issue happened.
Did you read this file from the ECM?
Support Ticket with HPT then.
yes I did
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