Welcome to our community! Here you can share advice and tips with thousands of other Microsoft mobile devices users around the world in English. Please take a moment to read our community guidelines for more information. Everyone can search and read the discussions, but to post your own question or reply to others you need to sign in first. If this is your first time here, you can choose an alias to represent you. If you don't have an account yet, please register here.
I have also same problem with my Nokia N79, I just cancelled sensor for automatic themes from cover. Just open back cover & stick some paper or plastic cello tape on four hole marks of covers wich r sensor for automatic themes to change colour of back cover same as theme colour. From 2 days I feel my mobile working fine without hanging ! so try it, all the best.