How to Flash Android 6.0 Custom ROM for HTC One M8

Dec 16, 2015 20:42 EST

We have already shared with you a few Android 6.0 Marshmallow based custom ROMs for HTC One M8. S-ROM was, however, one of the first ROM based and Android 6.0 Marshmallow and Sense 7.0. A very stable custom firmware, here is how you can update HTC One M8 to Android 6.0 based S-ROM.

- Show Battery Percentage and Configure Quick Settings – Android 6.0 Marshmallow Tips

Update HTC One M8 to Android 6.0

S-ROM Android 6.0 Marshmallow custom ROM:

Based on HTC A9 1.10.401.7
World’s first Marshmallow Sense 7.0_g A9 port for HTC One M8
Include latest A9 framework, drivers, and modules
Support all models, include CDMA models
Rock solid, super fast

Note: Custom ROMs are third-party firmware which means there might be some performance issues with some features. They also void your device's warranty; please proceed at your own risk.

Prerequisites to update HTC One M8 to Android 6.0 Marshmallow ROM:

Backup any important data from your HTC One M8 as a complete wipe will be required during the flashing process.
Install USB drivers for your HTC device. Check out this link.
Enable USB debugging option on your device: Settings > Development Options > USB debugging.
Ensure that your HTC One M8's bootloader is unlocked and that you have a recovery tool like TWRP or CWM.
Your device must be charged to at least 80% of power.

How to update HTC One M8 to Android 6.0 S-ROM:

Required files:

Download S-ROM Android Marshmallow custom ROM for HTC One M8.

Here are the steps to help you update HTC One M8 to Android 6.0 Marshmallow based S-ROM custom firmware:

Connect your HTC One to your computer using a USB cable and copy the ROM file to your phone’s SD card root folder.
Also copy and paste the boot.img file to android-sdk-windows\platform-tools directory.
Disconnect the USB cord and power off your HTC One M8.
Boot your device in the Bootloader mode by pressing and holding the Volume Down and Power keys.
Once in Fastboot mode, navigate to android-sdk-windows\platform-toolsdirectory on your PC and open Command Prompt (Shift + Right-click > Open Command Prompt).
Type the following command:
- Fastboot flash boot boot.img - press Enter.
- fastboot reboot - press Enter.
Follow the onscreen instructions on your phone. Select Bootloader > Recovery.
Once in recovery, perform wipe data tasks: from the recovery menu, select wipe data / factory reset and confirm the process.
Also perform wipe cache partition followed by wipe dalvik cache (from Advanced).
From recovery main menu, select install zip from sdcard followed by choose zip from sdcard. Locate the Android 6.0 Marshmallow S-ROM custom firmware file and confirm the flashing process.
Return back to main recovery menu and reboot your HTC One M8 into the new custom ROM.