Geo blocked

[Mopebe]

Hi, I have a Geo 2009 model, and changed the battery and o-ring. I cleaned the inside contacts with alcohol and Q-tip, so I took around 30 minutes without the battery in. When I put the new one and turned on, set the time, then it is blocked and no access to dive modes! when pressing M button only access to OFF and ALT (which blinks), then nothing else and returns to the main time. So I cannot set anything and no access to other menus. How can I reset it or what can I do?

 

[onefastpony]

Send it back to the manufacturer. If it is still under warranty take it to the shop where you got it and they will take cake of it.