- Rooted HTC One with unlocked bootloader.
- HTC USB driver for One configured on your machine
- Configure Android ADB and fastboot on Windows.
- ClockworkMod Recovery image for HTC One from clockworkmod.com/rommanager
- At least 50% battery remaining on your device
Procedure:
Before going into step-by-step details of how to flash CWM on your HTC One, I must point out that the easiest way would be to download ROM Manager from Play Store and use that to flash CWM. The process would require root access, but the guide already assumes that you’re pre-rooted. However, if you still want to feel like a geek doing things through Command Line, here’s what you need to do:
Step 1: Download ClockworkMod recovery image for HTC One from the Requirements section above. It should be in .img file format.
Step 2: Reboot your HTC One in bootloader mode, and connect it to the PC using the USB cable. To boot your phone in bootloader mode, press the Volume Down and Power buttons at the same time until the screen turns on. Now select “FASTBOOT” option by navigating through menu using Power button on the device
Step 3: Ensure that the phone has been detected and accepted by the computer, and that you have Fastboot installed.
Step 4: In the folder where your fastboot.exe and ADB files are residing, launch a command prompt window. You can do that by holding shift and right-click anywhere within that location, and selecting “open command prompt here”. The recovery .img file should also be in the same location now.
Step 5: Enter the following command:
fastboot flash recovery recovery.img
where recovery.img will be replaced with the actual name of your img file.
Step 6: Reboot the device normally.
