Att Htc One M9 with T-Mobile sim

[reys425]

Got the mobile data to work which is great. Now I'm wondering if the software is able to be updated? In the settings it says Att software updates. Any ideas?

 

[robertlugani123]

o update the software
Make sure your device has at least 16GB of usable internal storage.
Make sure your device is sufficiently charged and connected to Wi-Fi.
From the device home screen, tap Menu > AT&T Software update > Check for updates.
Follow the on-screen prompts to download and install the update.
The device automatically restarts once the new software successfully installs.
Here is the current update: Android 6.0 Marshmallow

The details

Release date: May 12, 2016
Android version: 6.0
Security patch level (SPL): March 1, 2016
Baseband version: 4.0.U605761@60220A_40.58.C33074.00_F
Kernel version: 3.4.0-perf-g81 48707
Build number: 6.20.502.5 CL730854
File size: 1.1GB
HTC Sense Version: 7.0



The updates
What's new: Android OS 6.0 Marshmallow

 

[hang-the-9]

This will not work since the phone is no longer on the AT&T network and if the updates do not work, it will have to be brought back to AT&T, update ran, then move back to T-Mobile.

o update the software
Make sure your device has at least 16GB of usable internal storage.
Make sure your device is sufficiently charged and connected to Wi-Fi.
From the device home screen, tap Menu > AT&T Software update > Check for updates.
Follow the on-screen prompts to download and install the update.
The device automatically restarts once the new software successfully installs.
Here is the current update: Android 6.0 Marshmallow

The details

Release date: May 12, 2016
Android version: 6.0
Security patch level (SPL): March 1, 2016
Baseband version: 4.0.U605761@60220A_40.58.C33074.00_F
Kernel version: 3.4.0-perf-g81 48707
Build number: 6.20.502.5 CL730854
File size: 1.1GB
HTC Sense Version: 7.0



The updates
What's new: Android OS 6.0 Marshmallow