The device is not booting , after firmware update, the fan and power is on , no boot option , nothing on the screen black screen

[ehanyegy]

The device is not booting, after firmware update, the fan and power is on,(LED) is on , no boot option, nothing on the screen black screen .
Device Nano Supper just arrived, after booting from 5.

[ehanyegy]

I am also trying to use the SDKManager , it is keep giving me this errors , while writing ,

[WayneWWW]

Please do not give a screenshot of sdkmanager GUI. Such record generally does not provide help.

There is a “EXPORT LOGS” button on the sdkmanager. Click it and attach the full zip file here.