At that time only for hobbyists - now also suitable for everyone.

However, any chance the Bluetooth mouse to connect to the tablet.

After many attempts (hints Amazon users) still not connected !!!

Now I have the mouse disassembled (3 screws under the Gleitaufdopplungen).

Then unscrew the printed circuit board.

After prolonged Consider me a self-yellow transparent plastic (about 5x5 mm) is noticed on the PCB contact surfaces of the connection key.

After removing this part everything went flawlessly.

How to disable a connection key factory !!!!!!!

ADDENDUM:

Here is an excerpt of the support write transactions me the GIGABYTE team:

Dear Mr .........
Thank you for your inquiry.
We appreciate your interest in products from GIGABYTE.
The plastic film was by no means on the board.
If you would have kept the film the appropriate team in Taipei like a photo of the part. Possibly can reproduce itself, in which production step, the film could reach the board.
Best regards
Your GIGABYTE team

Hello there,
Thanks for the answer.
Enclosed is a picture of yellowish transparent film (placed on white paper).
The size is approximately 6x6 mm.
I hope to have helped it.

Dear Mr...........
it looks as if the film from a SMD Bauteilgurt comes that has come off the belt and randomly on the board. The boards are automatically assembled, soldered and installed in the housing.
An absolute individual cases.
If the mouse now without the sheet OK?

Hello there,
Thanks for the answer.
The mouse is after removal of the film OK.

Dear .....
Thank you for your e-mail.
Then we close the case here.
Best regards
Your GIGABYTE team