Originally Posted by TopoX84
hold vol down + power... Until boot loader shows up, select recovery.
Sent from my HTC One using XDA Premium 4 mobile app
So now it finds the adb device, but when i do
adb sideload (filename).zip
It only comes up with a list of available adb commands. Am I not doing the command right? As far as I can see the phone has no /system partition and it cant mount /external_sd to install the old ROM zip from the sd