Shruthi XT bootloader mode is missing


I bought a shruthi xt (full control) and unfortunately I can’t get into the bootloader mode to run a firmware update. Current firmware is 1.02.

Neither holding the OSC 2 Shape + nor S6 button while booting shows the bootloader mode (no blank characters for upper line).

Is there anything else I missed?


Ok, bootloader was missing on AVR.