Install Android 6.0.1 Marshmallow for HTC One M9 [CandySix custom ROM]


download-android-6.0.1-marshmallow-for-htc-one-m9 brought an amazing news for the users of HTC One M9. Android 6.0.1 Marshmallow via CandySix custom ROM for HTC One M9 is now available. You can easily download(link provided) and install Android 6.0.1 Marshmallow on your HTC One M9 by following the detailed description below. Android 6.0.1 Marshmallow is the latest update released by Google for Nexus devices, however other devices will soon receive the update in the upcoming days. Thanks to CandySix ROM developers for providing the latest Android 6.0.1 Marshmallow firmware to HTC One M9. The ROM is based on Android 6.0.1 Marshmallow with all the latest features of stock Marshmallow firmware.

Features of CandySix Marshmallow ROM:

Omni switch
Headsup toggle
Navbar DPI
DarkUI switch
Lockscreen weather

The Android 6.0.1 Marshmallow custom ROMs will let you provide the glimpse of Google’s latest OS on your device. We have posted below whole instructions from start to end to update your HTC One M9 on Android 6.0.1 Marshmallow, just go ahead and follow the steps in sequence as mentioned.

Note: The Android 6.0.1 Marshmallow custom ROM for HTC One M9 is currently in the testing stages and you may experience some bugs but most of the features are seems to be working fine so just go ahead and install the latest Marshmallow Android 6.0.1 on your HTC One M9.

How to install Android 6.0.1 Marshmallow CandySix Custom ROM on HTC One M9

Before you Begin:

Disclaimer: This tutorial includes multiple operations including Custom Rom, custom recovery etc. Follow the guide on your own risk, we are not responsible if you brick or damage your device however the chances of bricking a device are rare but you have to pay full attention on the complete guide to avoid any issues and difficulties while performing any of the above mentioned operation.


  • Please ensure your phone battery should be charged at minimum 80%
  • Download HTC USB drivers
  • Your device should have a working TWRP or CWM recovery installed in your device.

Necessary downloads:

Process to install Android 6.0.1 Marshmallow on HTC One M9

Connect your device to your PC and copy the both ROM and google apps zip files onto your device storage.

Turn of your device and boot into TWRP custom Recovery menu by the hardware keys combination or using any third party app (Mostly found in Play store).

Once your device enters into TWRP recovery, create a Nandroid backup of your device or follow our guide to create a Nandroid backup (this will create a backup of your complete device including current firmware) if something goes wrong you can restore your previous firmware.

Once the Nandroid process completes, tap on “Wipe” and then swipe the slider from left to right to begin the wipe process (This will reset your device to factory)

Now it’s the time to flash the Marshmallow firmware on your device. Choose install and navigate to the folder in which you have copied the custom ROM zip file

Swipe across the slider to confirm install, wait for a few minutes till the file is completely installed in your device.

Once done with the above step, now apply the same process with the installation of gapps.

Wait for the installation process to complete.

Once completed Reboot your device.

If your device is taking longer then 7-10 minutes then follow this guide to to fix this issue

That’s it! Android 6.0.1 Marshmallow via CandySix custom ROM is successfully installed on HTC One M9. If you have any query feel free to contact us by posting your queries in the below provided comment section. Follow us on Facebook/Twitter/Google+ for future update.

A Software Engineer who loves to hang around latest gadgets and writes his own experiences to get the best possible and accurate information.

  1. Reply
    xfoneguy March 27, 2016 at 11:41 pm

    Having major probs – hoping someone might be able to hope, I flashed my HTC One M9 with the latest CANDYSIX ad it seems to be working – sort of. I tried several GAPPS installs that should have worked but they all errored out. I finally found one that installed – or at least it said it did. But I have absolutely NO apps – at all. Further, I can no longer access my phone from my PC. Sometimes an icon for the HTC shows up, but when I select it, it is empty – no files at all. The only way I can move anything around is by pulling the SD card, installing on the PC and then vica-versa. Any thoughts? I COULD have used RESTORE in TWRP but for some reason my original SD card is corrupted and I haven’t been able to recover it with any tools I’ve tried. Would sure appreciate any help – I’m about ready to bite the bullet and buy a new phone which I really can’t afford. THANKS!

    • Reply
      Alee March 28, 2016 at 6:16 pm

      You might be flashing the wrong Google Apps package, try the latest package from our link, the second option is you need to format your card and then put it back in your phone as it could be a SD card issue

      • Reply
        xfoneguy May 8, 2016 at 12:44 am

        thanks – will try your suggestions

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