Earlier today, I wanted to return my G2 to stock so I used the instructions in this thread:
I followed them to a tee, used the right .KDZ for T-Mobile and the whole process went through fine. However, after it finished it is now stuck in the lockscreen. I can't get past it because two dialogs keep popping up - "Unfortunately, System UI has stopped responding" and "Unfortunately, com.android.phone has stopped". If I try to close them, they immediately pop back up. I can't do anything at all, and I can't even turn off the phone.