if your samsung galaxy tab 2 7.0 is not charging and has no battery life and is blinking on and off with charger plugged in to charge. this was happening to me until, i took a normal steak knife and scraped lightly where the charger connects in the tablet on the pins, it worked. even on charger cord put knife in there and run along pins too.just lightly this works guys i was without tablet for 4 days until i tried this. i dreaded in thinking of having to buy a new one.....thank goodness the church bells are ringing my tablets charging and im so happy