Root One M8 Marshmallow Update

Here’s how you can root the latest Marshmallow update on HTC One M8. You are going to flash a modified boot image first for this via TWRP, and then flashing the SuperSU would do the job.

If you install SuperSU directly, this will brick your device. So, be sure to install the modified boot image (custom kernel) first, and only then flash SuperSU using TWRP recovery.

Downloads

• Modified boot image — Link | File: m8-mmgpe-su-boot.zip
• TWRP recovery — Link | File: twrp-2.8.7.0-m8.img
• SuperSU 2.56 root package — Link

Here is what we’re gonna do with the above.

We are going to install the modified boot image first, then boot into TWRP recovery, and will then use the TWRP to flash all new SuperSU 2.56 package to acquire root access.

Supported devices

• HTC One M8, Google Play edition (GPe)
• Don’t try this one normal HTC One M8 or those at US carriers like T-Mobile, Sprint, Verizon, AT&T, US Cellular, etc.
• Don’t try on any other device whatsoever!

Warning

Warranty may be void of your device if you follow the procedures given on this page. You only are responsible for your device. We won’t be liable if any damage occurs to your device and/or its components.

Backup!

Backup important files stored on your device before proceeding with the steps below, so that in case something goes wrong you’ll have backup of all your important files.

How to Root One M8 Marshmallow Update

1. Power off the device. Then wait for 4-5 seconds after screen goes off.
2. Press and hold Volume down + Power button together to enter bootloader mode.
3. Now, choose fastboot and select that option using power button.
4. Connect your M8 to PC and it should read FASTBOOT USB on your M8 now.

1. Open that root6m8 folder and then left click on empty white space in the folder.
2. Now, while holding shift key, right click on empty white space to get a pop-up as shown below.
3. Now choose Open command window here option from that.

You will see a command window open up, with location directed to root6m8 folder.

fastboot devices

→ Upon this, you should get a serial no. with fastboot written after it. If you don’t get fastboot written on cmd window, then it means you need to reinstall adb and fastboot drivers, or change restart PC, or use original USB cable.

If your device is not bootloader locked, then do this to unlock bootloader of it. This WILL DELETE everything on the device. Device will restart after this,

1. Run the following command first.

   fastboot oem unlock

2. Now, look at device’s screen, and press Volume up button to choose Yes. (Upon doing this, your device’s all apps and data will be deleted.)

→ Because unlocking the bootloader will delete everything on device, you will need to transfer the SuperSU file again (step 4).

fastboot boot twrp.img

(You have to use the recovery image’s filename in the above command, which in our case is twrp.img, from step 2.)

Note that we are only booting into TWRP for one-time use, not actually installing it. If you want to install TWRP permanently, then use the following two commands. First one will install TWRP recovery, and then second one will boot into TWRP. Second command is just for ease, and can be skipped if you wanna boot into TWRP on your own.

fastboot flash recovery twrp.img

fastboot boot twrp.img

That’s it. Either way, you should be in TWRP recovery now.

In TWRP, tap on Install, and then select the boot image’s file. Next, do the swipe action at bottom of the screen to flash the boot image.

That’s it. Your One M8 GPe on Marshmallow update is now rooted.

Need help?

Let us know via comment section below if you need any help with modified boot image root trick for your One M8 GPe.