Install official Nougat build 4.27.502.7 on AT&T HTC One M9

AT&T releases official Android 7.0 Nougat firmware update for AT&T HTC One M9. The update comes as software version 4.27.502.7, installs Android 7.0 Nougat on device as well as latest security patch updates. After sharing guides on HTC One M9 Nougat update released for Sprint and T-Mobile, now we are going to discuss the features and process to install the Nougat update on AT&T HTC One M9.

The update brings in tons of new features along redesigned interface and popular Nougat features like, integrated Doze Mode, Multi-Window, revamped notifications shade and much more. The official Android 7.0 Nougat 4.27.502.7 update for AT&T HTC One M9 not only brings the latest version of Android to a 2 year old device but also includes February security patch.

Note: The OTA weighs 1.39GB in size so you need to keep your device ready regarding memory and charge. If the notification hadn’t touched your device yet, call it in by going to Settings > About device > System updates.

Official Nougat build 4.27.502.7 for AT&T HTC One M9

Before going ahead prepare for the following things:

Charge your device to minimum 70%, that will avoid your device to shut down during the installation process.

Stock recovery must be installed on your device and your device must not be rooted.

The OTA installation is only possible with the help of stock recovery so if you own a device with custom recovery installed, unroot it and install stock recovery on it. The best way to get your device back in stock condition is to flash the stock firmware that was released prior to this upcoming Nougat firmware.

You can also install the stock Nougat 4.27.502.7 RUU on AT&T HTC One M9 as well.

Also read: HTC One M9 stock Nougat update and it’s features