OpenGD77

my CPS is version R2023.01.24.01

Sigi
OE4SMS

done: call up the CPS, connect the programming cable, remove the AKKU from the GD77, then switch it on with the black and blue button, then put the battery in and the LED is green, then the previous firmware is installed and the device works again

73 de Sigi
OE4SMS

I removed the battery, tried different key combinations, the device can no longer be switched on

OE4SMS

CPS version is :R2023.01.24.01
Firmware I installed the beta version 2023 04 23
Installation went smoothly, after I switched off the GD-77, the radio can no longer be switched on

OE4SMS

Hello, my name is Sigi, QTH is in the east of Austria, I am Ham for 30 years.
73 de Sigi
OE4SMS

my GD-77 also does not react after the last firmware update, it can no longer be switched on
73 de OE4SMS