Welcome to Apple iPhone news and Chat discussion forums. iPhone Discussions is dedicated to iPhone,Talk about iPhone modifications,software,reviews,Support, iPhone news , iphone mobile,iPhone OS and more...
Hi.
First of all you should - if you haven't - register at iCloud. Here you'll have a constant back-up.
Since I don't know if you use Mac or PC, I can't tell where to find the damaged back-up file.
You might also want to try this: Plug in your device to your PC/Mac. If iTunes automatic make a sync/back-up, wait for it to finish. Now, right-click your device and choose "Make back-up", and see if this "forced" back-up might help.
Hope this was helpful.
Hi.
First of all you should - if you haven't - register at iCloud. Here you'll have a constant back-up.
Since I don't know if you use Mac or PC, I can't tell where to find the damaged back-up file.
You might also want to try this: Plug in your device to your PC/Mac. If iTunes automatic make a sync/back-up, wait for it to finish. Now, right-click your device and choose "Make back-up", and see if this "forced" back-up might help.
Hope this was helpful.

Reply something about My iTunes doesn't make Backup Why iPhone 4 or Post a New Thread