HTC One M8 can now be updated manually to Android 6.0.1 Marshmallow using the crDroid custom firmware. Although official update has been released to One M8 phones, crDroid offers a different take of the software, making it more customized and personal.
HTC One M8 phones may now proceed to Android 6.0.1 Marshmallow without fretting when the update would come. crDroid custom firmware already released support for the device to be updated to Marshmallow. Promised to be fast and smooth, the firmware comes chockfull of advanced features and enhancements on top of many customization options.
crDroid specifically brings features and tweaks like clear recents location, slimdim, omniswitch, faux sound control, toast animations, superuser indicator, date and time customizations, crDroid logo, non-intrusive incoming all, network traffic meter, and voltage control, among many others.
However, be reminded that installing custom ROMs can be risky as it may brick the device, more so it voids its warranty. Also, do not use this ROM to any other device.
Here is a list of prerequisites for installing crDroid:
1. Unlock device's bootloader first.
2. Root the device.
3. Install TWRP or CWM Recovery on the phone here.
4. Back up all necessary data.
5. Do a Dalvik Cache wipe before leaving the Recovery Mode.
Here is a step-by-step guide to install crDroid on HTC One M8:
1. Download Android 6.0.1 crDroid on PC.
2. Download Google Apps Package.
3. Connect phone to PC using the USB cable.
4. Copy then paste downloaded ROM files to phone's memory or SD card.
5. Copy then paste the boot.img file to android-sdk-windowsplatform-tools directory.
6. Switch off phone and plug it out from the PC.
7. Go to Bootloader/Fastboot mode by press holding volume up and power buttons.
8. Go to android-sdk-windowsplatform-tools directory (on PC) and open Command Prompt (Shift + Right-click > Open Command Prompt).
9. Type: fastboot flash boot boot.img.
10. Then type: fastboot reboot.
11. Follow on screen instructions then choose bootloader and go to recovery.
12. Choose 'Wipe' to delete of data then 'Swipe to Factory Reset'.
13. Go to main menu and choose 'Install'. Choose the copied ZIP file on the phone.
14. Choose 'Swipe to Confirm Flash'.
15. Wait for the installation to complete. Then repeat the process beginning #2 for Google Apps.
16. When phone gets into any boot loops or other troubles, tap 'Wipe cache/dalvik' button.
17. Choose 'Reboot System'.
To verify the update, to go Settings > About phone.
