Have a nice time with it :D
i am found other rom
he says all things work fun , just cannot hang phone call
i will try it , and tell you about result
in google play
Go to HTC UK (not Global) and download the latest HTC Sync Manager v220.127.116.11 which apparently works for W8.1. I'm still downloading the 8.1 update so can't confirm yet.
fastboot didn't work im in 8.1 with latest htc sync and driver also...
try make wipe factroy reset from recovery
try READ THREAD again !