IM508 Bricked 2018 Renault Scenic Finally Solved by Autel Team

Autel IM508 just bricked 2018 Renault Scenic. Read dflash OK, PIN verification failed. Learn card failed. I suppose UCH is blank now. EDIT: Car sorted with Autel support help. Main reason: Main app issue that hangs after dflash reading Solution: learn UCH, read dflash again, retrieve PIN, Make dealer key, install beta update, learn cards.