Full backup before reset?
My Prime has been very sluggish since updating it to Jellybean so I want to do a factory reset, but I have absolutely bucketloads of stuff on it, including hundreds of MB of 'extra' files for apps like Mass Effect Infiltrator, Bard's Tale and so on. According to the settings I have over 20GB of content in Internal Storage.
If I reset I'll have to re-download all this, plus I'll probably lose progress/saves in some apps as that's not always backed up.
Is there a good way that I can back this stuff up so I don't have to re-download/lose it when I do a reset? My device is not rooted.