Use this page to identify software versions for the HTC One (M8) as well as details on recent software updates.

Identify the device's current software version

6.20.531.5

From any Home screen, tap Apps. Tap Settings. Scroll to 'PHONE' and tap About. Tap Software information. View the Software number. Review the information in the Review software version details section below.

Review software version details

VERSION RELEASE DATE ENHANCEMENTS STATUS 6.20.531.5 Android version 6.0 Software version 6.20.531.5 March 7, 2015 Android Marshmallow Available March 7, 2015 If your device meets the update requirements below, you can upgrade to the most current software version. 4.20.531.5 Android version 5.0.1 Software version 4.20.531.5 September 8, 2015 Messaging security improvements Available September 8, 2015 If your device meets the update requirements below, you can upgrade to the most current software version. 4.20.531.4

Android version 5.0.1

Software version 4.20.531.4 February 10, 2015 Android 5.0 Lollipop Available February 10, 2015 If your device meets the update requirements below, you can upgrade to the most current software version.

Determine update requirements

Your device must meet the following requirements to update your software to the most current version:

50% or higher battery life

Wi-Fi connection

Size of update: 1.14 GB

Update software versions

Update from the device

From the Home screen, tap the Apps icon. Tap Settings. Tap About. Tap Software update. Tap Check Now and follow the on-screen prompts. This is a large update and may take 20 minutes or more to download and install.

Issues after updating

If you experience issues after updating to the latest software version, follow these steps: