Originally Posted by maxbwb
I know this has already been posted but I've tried to read the other posts and don't understand so step by step instruction would be helpful. I'm an idiot and advanced wiped my AT&T HTC One M7 so now all I can do is access TWRP and it says I have no OS. Can someone please help me it would be much appreciated
Make sure you have latest adb version installed.
If not download from here
Make sure you have TWRP 188.8.131.52 installed
Rename the custom rom... rom and put the rom in your adb folder.
enter recovery and connect the phone to the PC.
from within the adb folder. Press shift/right mouse
Then open command prompt here
From advanced menu in recovery enter ADB sideload
Then from command line
type adb sideload /path/to/rom.zip
It will take a while for the rom to be copied
Sent from my HTC One using XDA Premium 4 mobile app