Once I moved up to the Volt, I gave my Tribute to my mother since she had some crappy phone. It has worked fine until recently where she can't download updates to her phone. They will start and then just stall around 78%-81%. she has over 600MB free storage so I know it's not that. Even downloading a 4MB app will stall and only by miracle will it download after an hour. Any clue on what it could be? Thanks.