First of all, one of our relatives gave my mom a Samsung Galaxy tab 7.0 Korean clone tablet, but the real device name is Softwinners V706, which runs on android 4.0.4. and has 5.05gb of sd or internal storage. First it was very descent, easy to use. But then, When I install apps on google play like Hungry Shark Evo, Dead Trigger, apps with very large files, an error pop up and said "Couldn't install on USB storage or SD card". The solution was unmount the External memory card then mount it back again. But the tablet we were using didn't have an External memory card yet. And here's another problem. I tried to move apps to INTERNAL memory of the tablet, an example was the game "pou", It won't save. what I mean about it wont save, it becomes some thing like this, "me.pou.app", and becomes missing on the app drawer. another is the pictures and even screenshots, it won't save on the Internal memory of the tablet. We are new to this android thing. Please help us! I used the camera of my phone because the tablet won't save pictures for the screenshots. 
