WD Ex4 after Firmware upgrade not accessable

After an upgrade of my firmware to My_Cloud_LT4A_2.12.127 my WD Ex only give “Welcome to WD MyCloud Ex4” as message and that’s it.
No blue lights are blinking or lightning up.
The buttons are inoperateble.

The reset button on the back looks inoperateable to.

Waiting a few days with power still no activity.
Unplug the power for 1 day still no activity.

Does anyone knows what to do or is this the end of my WD Ex4

desperate waiting for a solution,

Ronald Heemeijer

@RonaldH You need to go back to the community and post in the correct sub-forum for your device.