No function after firmware upgrade

[awedel68]

Hello Dimitri,
I own a 56 input magadrum STM32F205RCT6.
I tried to upgrade to megadrumSTM32d_56_20180121.bin
The update seems to complete Magedrum manager and the
megadrum display show the progress. After that the display
gets black. No reboot, even after power off / on.
I can repeat the procedure powering on pressing the left key.
After update the same situation. Display and led off.

Tried the same with former version megadrumSTM32d_56_20171221.bin
Same result.
I would apreciate your help. Thanks in advance.
Best regards, Andreas

[awedel68]

Hello Dimitri,
I solved the problem. Used the commandline tool and it worked.
The upgrade process took much more longer, but now the megadrum
boots properly. Best regards