I recently flashed my 770 to the latest version using SU-18_2006SE_3.2006.49-2_PR_F5_MR0_ARM.bin and flasher 3.0 and it went very successfully. Saw a vast improvement in wireless connectivity. Every thing appeared fine. After a couple of days without a charge, I picked it up and turned it on. I got a white screen similiar to the screen where the progress bar loads but without the progress bar. It flashed quickly then went out. I plugged it in the charger and the white screen came on for a couple seconds then went out. I left it on the charger for a day but now when I turn it on I get nothing. I tried to reflash but the script times out waiting for a suitable device even with it plugged in. I removed the mmc card and tried again same results. AIso have removed the battery and plugged into the power supply, Screen doesn't even light up. When I plug it now it blinks once goes out and I get nothing. Anyone have any ideas, I am hoping there is something I am missing. Thanks Frank