I recently bought a G1 off the internet and when it came to me it had some mod installed on it. The phone was running really slow and crashing so I did a factory reset and since then the phone wont go past the G1 screen while booting. I can go into the recovery menu by holding end and home but I have no idea what to do from there. I've done a factory reset but it didn't help, in fact it seemed to make it worse. This is my first time dealing with Android so I don't know what I'm doing. I was hoping somebody on here would be able to give me instructions on restoring the phone to the original out of the box settings.