Originally Posted by CristianoFit
I'm currently running 4.3 on the HTC One m7 AT&T with a custom rom (viperom) and i've lost root acess i dont know why, i want to update to CM11 can anyone help me?
Latest CM11 requires TWRP 18.104.22.168 so flash twrp 22.214.171.124 and flash CM11 and you should be fine
fastboot flash recovery name_of_recovery.img
fastboot erase cache
then enter recovery and flash CM11