I got a rockchip apad and have the following problems with it can anyone help me solve them, I need to see if they are solvable or not so I can see if I need to send the apad back within the refund time.1. the g sensor does not work even after enabling it2. HD videos work but seem to be slow like they are buffering3. keypad has chinese characters, I want to turn it into complete english keypad, this problem will not let me connect via wifi as it does not let me type the @ key. I have gone into settings and changed the language to english.Would really appreciate if someone can help.