I am having LG Optimus M, which I brought last month. I had done rooting my phone and then removed some of the unwanted stuffs. Now, as the android market does not work, I am not able to connect to the computer through the USB cable. I also tried using the USB cable driver in LGMS690 zip file, but it did not worked for me. So I want to return to my original factory settings, that I got when I purchased the phone. Is there any way that getting something on my MicroSD card would solve the issue?