HTC One A9, the latest Smartphone from HTC, has been in the headlines ever since its launch not just for its design but also for the stunning specifications it pockets. The One A9 device comes with Android 6.0 Marshmallow firmware out of the box and is being updates for security patches and bug fixes regularly. The stock firmware from HTC comes in the form of an RUU file and the installation procedure is quite simple. The file for A9 weighs a lot, though, but this is a great deal when it comes to restoring your device to full stock.

The latest software upgrade to version 1.56.617.1 brings battery and camera improvements, some Android security patches and bug fixes along with the latest Marshmallow firmware with latest Sense 7 UI.

Moreover, if for any reason you have rooted or modified the firmware on your device, then you may not receive any updates over the air. Hence, to receive the OTA updates, you will need to revert back the changes and get stock firmware installed. To do so, the RUU.exe files is the easiest option available. There are many techniques you can you to install the stock Marshmallow firmware on your HTC one A9, provided you possess the correct file for that matter.

Hit the download section below to get the latest RUU file for your device. To know how to install the firmware, get to out installation tutorial guide from below. The guide involves 3 methods to flash the RUU file. The first one needs an RUU.exe file, which is suitable here, and the other 2 methods require a ZIP file.

Moreover, the latest TWRP build is now available for the device officially and it comes with the latest TWRP build v3.0.0 which the TeamWin Recovery Project released recently. This new TWRP build brings many new features and a completely new theme as well.

Download Marshmallow for HTC One A9

The links are now live. Also, visit HTC News Page for the latest version.

HTC One A9 Maintenance Release
Download | File: RUU_HIA_AERO_UL_M60_SENSE7GP_ATT_MR_NA_Gen_Unlock_1.56.617.1.exe

HTC One A9 file
→ Download | File: [Link not available]

How to install Stock Marshmallow Firmware on HTC One A9→

Install TWRP on HTC One A9→

Source: HTC News Page

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