How to Install Android 6.0.1 Marshmallow Slim6 ROM on HTC One (M9) .

HTC One M9 Slim6 custom ROM comes with tons of new features and is based on Android 6.0.1 Marshmallow.

Don’t worry we are going to share step by step guide to safely Install Android 6.0.1 Marshmallow Slim6 ROM on your HTC One (M9).

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 ÷ Prerequisites:

•This tutorial is only for installing Android 6.0.1 Slim6 ROM on HTC One M9. Please do not try on any other One M9 variants.

•Your phone should have a custom recovery installed in order to install this Slim6 ROM on your phone.

•We will be using TWRP Recovery for this tutorial.

•Bootloader should be unlocked.

•This tutorial will wipe out all your data. Make sure you backup all your data in your phone before proceeding.

•Perform a Dalvik Cache wipe before proceeding from the Recovery Mode.

*Disclaimer:

Android Custom ROM fix ® provide various Firmware Updates and Rooting process along with Custom ROM,Modes,file are all belong  to their owners/developers. The autor of this site or the developers are not responsible,  if you damage or brick your device.Do it on your own risk and follow the instruction properly.


* Important:

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 Install Android 6.0.1 Marshmallow Slim6 ROM on HTC One (M9)


Step 1 – Download Android 6.0.1 Slim6 ROM for One M9 to your computer and extract boot.img from the zip file separately.

Step 2 – Connect and mount your One M9 USB memory to your computer using the USB cable.

Step 3 – Now copy/paste the downloaded Android 6.0.1 ROM zip file to your phone memory / SD card. Make sure the file is in the phone memory / SD card root (not in any folder).

Step 4 – Copy/paste the boot.img file to android-sdk-windows\platform-tools directory.

Step 5 – Then turn OFF your phone and disconnect from the USB cable.

Step 6 – Now to get in the Bootloader/Fastboot Mode. Turn ON the phone while pressing and holding the Volume Down + Power buttons.

Step 7 – Once in the Fastboot mode (on your phone), navigate to android-sdk-windows\platform-tools directory (on your computer) and open Command Prompt (Shift + Right-click > Open Command Prompt).

Step 8 – Type the following command and press Enter.


fastboot flash boot boot.img

Step 9 – Then, type the following command and press Enter.

fastboot reboot

Step 10 – Follow the navigation instructions on the screen. Select BOOTLOADER and then go to RECOVERY.


Step 11 – Once you are in TWRP Recovery, perform a full data wipe by tapping on the ‘Wipe’ button. Then swipe on the “Swipe to Factory Reset” option at the bottom.

Step 12 – Now go back to the main menu and then tap on the ‘Install’ button. From the list, choose the ZIP file that you copied to your phone memory in Step 3.

Step 13 – Confirm installation on the next screen by swiping on the “Swipe to Confirm Flash” option. The installation procedure should start now.

Step 14 – Once the installation is completed.

Step 15 – Tap on the “Wipe cache/dalvik” button if you get into any boot loops or other issues.
Step 16 – You can now reboot your phone by selecting the “Reboot System” button.

Your HTC One M9 will boot now and it might take about 5 minutes to boot on your first time after flashing a new ROM. So, please wait.

For More HTC One M9 latest updates Keep Checking Android Custom ROM Fix …

That’s all. We hope this guide serves you well. If there’s anything you’d like to be added/changed on this page, PLZ Use the comment box below to contribute more ideas & Suggestions .

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