Trying to upgrade my LG P970g optimus black android to 4.0. I have been directed to use the LG Mobile support tool. I am able to connect my PC to my phone no problem. Once I get to the step to download and upgrade the phone, the LG Mobile support tool program spits back a error message and the download stops. Is there any other way I can update this phone? Didn't realize a simple download upgrade had to be so complicated???