Video recording stops and camera freezes after few seconds

I have a Nikon Coolpix L820 that I bought when it launched. I didnt use it much as I had alternatives, but there was one incident when i had to record the video and i happened to hit the memory full on the card, to the extent that it was out of memory. From that moment, my camera never recorded video well, which was otherwise fine. I thought it freezes as the card speed is low, i upgraded to a faster card, i formatted everything, i updated the firmware, but nothing helped. I can not even record 10 seconds of video footage, the camera freezes. I now need this back in right condition, if anyone can help me with a trouble shooting technique, i'd be very thankful!

Regards,

VKS