TC55 cannot back to the production firmware from the DPX firmware


Some time ago I installed DPX. As this was on Demo Pool Brno unit I tried to revert it to the production BSP. Unfortunatelly the unit is showing that it is installed correctly and ask to restart and they in hang on on the splash screen.


any idea what to do? I tried BSP 1.74 in nonGMS and the same with GMS. It is possible to start the device in bootloader mode.