If I install any new apps, they would work (even Facebook), but after reset, they were all wiped out and replaced with the previous versions (like it was restoring an old 'backup' of the system with those apps installed). I've noticed that there were a bunch of apps installed and I deleted them all. The problem was: Whenever I try to open most apps (Facebook, Twitter, Instagram, and others - but not all) the Tablet would vibrace once, then twice, then display an error message saying that the 'application stopped suddenly' and I'd have to try again. I'm currently in trouble with my samsung Galaxy Tab GT-P1000L GSM+WiFi model from Brazilian's Vivo carrier. I've originally asked this question on stackoverflow, and I was suggested to ask it here.
