sd card problem, internal sd cardspace in my internal memory so I formated the memory from my computer and from that day on its a total nightmare. Now I can't use the internal sd card, I tried formatting it from my tablet but nothing happens it just says checking for errors and the screen flashes for a sec and then nothing. I tried to reset but still nothing, please help me out. P.s. I tried using an external sd card but it didn't help because i still need the internal memory to download heavy files.