Computer is stuck on the Gas List

[Margrange]

Hi, I carried out a simulated dive and then I altered the gas percentage. Then three select arrows appeared on the screen at once. I tried to select "next" but the computer locked up completely. I had charged it up the previous night, so the battery was 100%, I have tried all the buttons, but the computer has been on now for 26 hours. The model I have is the OSTC 2 sport with induction charger.

[heinrichsweikamp]

What's the firmware version you are running?

Regards,
Matthias