With Autel Gbox, with Auro IM600 connecting with XP400 & J2534 ECU Programmer, Benz sprinter 906 All key lost done successfully.
Image one shows: Succeed in computing password, key password is xxxxxx.
Image two shows the complete connection among Autel G-box, Auro IM600, XP400 & J2534 ECU Programmer:
It's nice to read the Autel G-box reference guide:
Zoom to see it clearly.