Gear Fit 2 pro not booting

Hello,

I have a problem turning on my Gear Fit 2 pro, I see the Gear fit logo then the Samsung logo but the screen goes black shortly after that.

What I tried so far:

1. Reinstalled the latest firmware via NetOdin.

2. Hard reset (10s on power)

3. Factory defaults via reset menu (the watch turns off shortly after the reset begins)

4. Disconnected the battery for few min.

5. I flashed the Combination Firmware

Could you please let me know if there is anything else I can do?

Best regards