Originally Posted by
GibMcFragger Do you have your phone set to lock itself when the display goes on standby? If so, it will disconnect the USB when it locks itself and you will have to press a button and enter your password to unlock it every now and then to continue the install. I had the same problem before and it took a while for me to figure out why it was taking forever.
I have upgraded a few beta OS's since then and each time I disable the password lock in security options before I run the install and I have no issues.