Please help - Samsung Tab 10.1 booting to recovery and download mode only - no normal topic

Hey guys hope someone can point me to the right direction or knows this problem:

Galaxy Tab 10.1 Wifi (P5110).

Device will only boot recovery no matter what. (both with stock or custom recovery AND stock or custom rom installed - tried all combinations already)

Stock rom has been installed with odin and pit-repartition has also been tried.

When I turn on the tablet it boots straight to recovery. On stock recovery it says something about update, then "no command" and when I then choose reboot system, it says error and powers the device off.

Please help.