Thank you for taking an interest in my problem fellow e-book nerds
Just in case someone has a similar issue or is curious about the development of the problem:
I contacted Onyx, they also asked me about the magnets, but I am very confident that no magnets or things containing magnets (speakers) have been around the device. Of course the device is near a computer, but it is advertised as a second monitor, so if this is the issue it would be very strange.
They obviously recognized the problem as a hardware issue since they said I would have to send them the device to China.
I am a student and have replaced all book and note-taking things with the device, and it would be inconvenient to say the least, having to wait the weeks this process would take, sending the device to china etc.
So I sent them I should not be made to suffer for buying a broken device, and suggested they would send me a new one and I would sent the broken device on arrival of the new.
This they could not do, but suggested we meet in the middle and I would buy a new device on amazon, and send the old one back, and they would repay me the new device and shipping.
I find this to be a satisfying middle-ground, but it will have to wait until I have the money to buy the new device, until then the broken device will have to do.
I do find it strange though that they are happy to allow me to keep on using a malfunctioned device, the device is very exotic and people find it very curious at the university, and are asking me about it. Showing them the device with a blind spot is not very good advertisement for them.