You have flashed a RUU firmware on your HTC One M9, removing root and restoring the phone to stock. Once the installationis finished, enter this code to reboot the phone:.Move the firmware file to the Fastboot folder.Open a command prompt window and enter the following code: In the US, T-Mobile rolled out the update in March, while AT&T followed suit in May. Connect your phone to your PC using a USB cable. Internationally, One M9 units started seeing the new software back in February.

Download the firmware and rename the ZIP file to “firmware_M9.zip”.

Make sure you have installed ADB & USB drivers. T-Mobile HTC 10 Android 7.0 OTA System Update 2.37.531.5 2017 Jan 4, T-Mobile USA All details T-Mobile HTC One M9 Android 6.0 OTA System Update 3.39.531.

First of all, download the RUU firmware file you want.

If you do not have S-OFF on your device but S-ON, this guide will not work. How To Install RUU Firmware On HTC One M9 & Restore Back To Stockįirst of all, you need to have a HTC One M8 with S-OFF. If you are looking to restore your HTC One M9 to stock, follow the guide below. All applications will be deleted, root access will be lost and everything will be on default state. And then there’s some battery improvements included with this One M9 update, which are always welcome.By flashing a RUU firmware file, your HTC One M9 will be like brand new. The unlocked model, its developer edition, as well as the version that AT&T is offering have all received the Android 5. Plus, I’m sure that most T-Mobile One M9 owners will just be happy to be on the latest publicly-available version of Android. The unlocked HTC One M9 is a flagship device that is certainly worth checking out back when it was released, and it still ain’t too shabby of a handset even by today’s standards. The update from Android 5.0 to 5.1 isn’t a huge one, but it does offer a handful of tweaks and bug fixes. Just be aware that it’s 833MB in size, so you’ll probably want to be on a speedy Wi-Fi connection before you start downloading. If you’d like, you can try to pull the update manually by going into Settings > About > Software updates > Check Now. If you’ve got a T-Mobile-flavored One M9, though, you probably want the update as soon as possible.

The One M9’s Android 5.1 update will be rolled out over the air from July 27 through August 20. The update will bump the phone to software version 2.7.531.6 and it includes Android 5.1, anti-theft, Google Wallet, and battery improvements. Starting today, July 27, the T-Mobile version of the HTC One M9 will start getting its update to Android 5.1.

Htc one m9 software update t-mobile