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(Highly recommended to flash firmware directly) - Firewater or Sunshine app. Frequently Asked Questions (FAQ) What is the final Android version for HTC One M8?
The RUU method is the safest way to restore the M8 to stock. 1. Locate the Correct RUU File
When searching for the updated stock ROM, you generally have two paths. The first is the official RUU (ROM Upgrade Utility), which is an executable file provided by HTC to return the phone to its absolute factory state. The second is a "Stock-Rooted" ROM, which is the official software packaged in a flashable .zip format, often pre-rooted and optimized by developers to remove old carrier bloatware.
The final official Android OS update provided by HTC for the HTC One M8 is .
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Running the official, updated stock ROM ensures your device operates as intended.
If your device is still on KitKat (4.4) or Lollipop (5.0), you can update it to the final Marshmallow build:
Note: If your device has S-ON, your bootloader must be completely locked or re-locked for the RUU installer to execute successfully. Method 2: Flashing a Stock ROM Zip via TWRP Recovery
If an executable RUU is not available for your specific variant, you can flash an official pre-built stock ROM ZIP file using Team Win Recovery Project (TWRP). This method requires an unlocked bootloader. Step-by-Step TWRP Installation:
Install the official HTC USB drivers on your computer.
Download the correct file matching your carrier and model variant to your PC.
Flashing an is different from Samsung or Pixel devices. You have three methods. We recommend Method 1 for beginners.
The remains a legendary device in the Android community, and keeping it running on its latest official stock ROM is the best way to maintain its classic experience. The final official software update for the HTC One M8 is Android 6.0 Marshmallow .