Soon after the HTC One is announced the android developers are working on tools and methods to unlock the bootloader, root the device and install custom ROMs for the users who want to tinker with their smartphone OS and free it from the manufacturer limitations.
Unlock HTC One bootloader is required if you want to root or flash any custom ROM on the device. By following this guide you will be able to unlock your bootloader within 15 minutes.
We are using the tools available from HTC website to do the unlocking process so the security risks are nil but you will still void your your warranty. It’s recommended to read the full article before you start the unlock process.
That’s all! You have successfully Unlocked the Bootloader of your HTC One. Now you can root and install Custom ROMs on your device without any issues.