Answer to: Scatty Sam sung tablet!Hi. Seems like your tablet's default apps where cleared. Try going into your device's Default applications options to set up your preferred Apps. Hope that solves your dilemma.
Answer to: Stuck on "3" start up screenHello. Try this link Stuck on logo fix Hope that helps.
Answer to: forgot pin and patternHello. This should help solving your problem. Bypass your Samsung phone’s lock screen using its Find My Mobile tool This is an easy way to unlock your Samsung device if you created a Samsung account and registered it beforehand. Go to Samsung Find My Mobile Sign in using your Samsung login details. In the Find My Mobile account interface you should see your registered phone on the left hand side. This tells you that you’re phone is registered to that account. On the left sidebar, select ‘Unlock my screen’. Now select ‘Unlock’ and wait for a few seconds for the process to finish. You should get a notification window telling you that your screen is unlocked. That’s it. Your phone should be unlocked.