PRS-T1 PLS HELP! my prst1 keeps freezing when I connect to computer

PLS HELP! i upgraded my prst1 to latest version (1.0.07) after that it got 2 problems:

1. it kept freezing when I connect to computer
2. wifi configuration cannot be FOUND.

i tried all of solutions posted in this forum, like SD_rescure package, initialize to factory setting,etc... all of them didn't work.

PLEASE HELP ME TO SAVE MY READER.

THANKS A LOT