Note doesn't start & freezes topic

Hello together

I got a Note 8.0 and I tried to start it. The Samsung Galaxy Note 8.0 sign appears and then the tablet freezes.
I can enter the download mode (everything is official there), but not the recovery mode.

What did I tried to do:

• I flashed several recoveries (CivZ-Touch-6.0.4.4., CWM-Recovery, philz_touch_6.07.9, TWRP-2850 and stock recoveries) which worked.


• I flashed two different stock ROMs with odin and the passed, but the tablet still does not start


• Tried to root tablet with "CF-Auto-Root-konawifi-konawifixx-gtn5110", also passed with odin. A red Android man appeared and it told me something like mount error.

Does anyone have another approach? If not, I will return the tablet.

Thank you in advance!

Greetings and a nice Sunday,
privat