AT&T and T-Mobile both pushed out the much needed camera improvements update for the HTC One M9 yesterday, and now the RUUs are also available for both the devices in case you weren’t able to take the OTA update.

For the AT&T HTC One M9, the update comes with software number 1.32.502.31 and for the T-Mobile HTC One M9 the update carries software number 1.32.531.33. While camera improvements is the common ground between updates to both the variants, there are certain other improvements as well. Check out the official changelog from AT&T and T-Mobile below:

AT&T HTC One M9 Changelog (1.32.502.31)

  • Camera improvements
  • Thermal improvements
  • Various bug fixes and improvements

T-Mobile HTC One M9 Changelog (1.32.531.33)

  • Camera improvements
  • BlinkFeed improvements
  • User experience improvements

In case you aren’t aware of a RUU, it stands for Rom Upgrade Utility and is useful when you want to update your device manually or want to return back to stock HTC software after playing a while with root, custom ROMs and such stuff.

  Download AT&T HTC One M9 RUU version 1.32.502.31 (2.1 GB)

  Download T-Mobile HTC One M9 RUU version 1.32.531.33 (2.0 GB)

HOW TO INSTALL RUU ON HTC ONE M9

Note: If you’ve an unlocked bootloader with S-OFF, then you can install the RUU easily. However, if your One M9 has an unlocked bootloader with S-ON, then you’ll have to re-lock the bootloader first to be able to install the RUU update.

  1. Download the RUU on your PC from the download link above.
  2. Connect your HTC One M9 to your PC via a USB cable.
  3. Make sure you’ve HTC One M9 drivers installed on your PC.
  4. Double-click/Run the RUU update file to launch the system update wizard.
  5. Follow all of the system update wizard instructions shown on your PC.
  6. Once the update is complete, click Finish in the Wizard and the device will reboot.