Man. You have two ways.. even to flash nand android or returning back to wm6.5 to return to wm 6.5 u first turn off ur fone, press volume down and power botton to go to the multi color screen .. and then flash ur favorate wm 6.5 rom.. and sorry to tell u that the contacts are alreqdy rlearased if they were on wm 6,5 ..
Previous Phones: Imate Pocket pc,Imate jam, Imate K jam, Imate Ultimate 6150, sony ericsson w850, sony ericcson w910, sony ericsson xperia, HTC diamond, HTC HD, HTC HD2 !!!
,(worst times of my life) htc chacha(disappointing instead it has a great keyboard),HTC EVO 3D
Current Phone:HTC ONE xXx
Trying various Roms..flasholic