Hi there, Wondering if anyone can help me. I have just purchased an Android Tablet in Singapore. The person who sold me the product set up the tablet in english for me. In the process of me looking through the settings I accidently changed the language to Chinese. I then when back to settings to try to re-set to english but I accidently pressed "something calaboration" and an image similar to a shooting bullseye appeared on the black screen and now I cannot see anything. I do not know what to do. Im desperate for help. What have I done? Is it irreversable?