Thread:DaveHaze/@comment-22439-20131219201639/@comment-5916519-20131220162452

Ok, connect it with your PC. Open your device folder. Then open /data/app there you search for the minecraft pe folder open it and then: Documents/games/com.mojang/minecraftWorlds

There you should see your Worlds... just copy the world folders to your pc after that look if you have all files in it (you should see a folder with the name "players" and four more files with the names "chunks.dat", "entities.dat" , "level.dat" and "level.dat_old"

If there are all files in it you can delete minecraft pe from your device and install it again after that you can just put the world folders back into the minecraftWorlds folder and it should work again :)

If you still have any questions just ask ;)

Yours Sincerely,

David N.