Nokia :: N97 Mini Constantly Pressing "J" And Cannot Stop Even When Slide Is Closed

Basically my problem is in the title, my phone is continuously pressing 'J' and I cannot stop it, even when the slide is closed and often when they keys are locked. I have NOT dropped the phone or anything like that, I go out of my way to keep it safe and this problem emerged on Thursday when I recieved a message asking if I wanted to auto update.

I said yes, it apparently had installed the update but then hours later this problem starts so I look online the next day and thought i'd try and manually update the firmware, which told me I did not have the latest firmware.. So I installed it, the problem remained. I look around and see that a lot of people have resolved issues with a hard reset, I have also tried this and it has not fixed my problem.