AT&T HTC One M8 4.4.3 OTA Update version 2.23.502.3 with RUU packaged available

The Android 4.4.3 update on AT&T’s HTC One M8 now goes live via OTA update. The 4.4.3 update will bump up the software build version to 2.23.502.3 and brings some new features such as the File Manager application and AT&T ‘s Messaging & Backup Service (AMBS).

Changelog details of the 2.23.502.3 software update:

· Android 4.4.3
· Security fixes
· Wi-Fi fixes
· Bluetooth fixes
· Mobile network fixes
· Camera app update
· Gallery (Image Match)
· Settings (Power History)
· HTC Sync Manager
· Boomsound optimization
· Extreme Power Saving Mode optimization
· Motion Launch optimization
· Quick Setting optimization
· New Security fixes and Performance optimizations
The update can be downloaded via OTA update for those HTC One M8 users inside AT&T’s Wi-Fi coverage, while for those  outside the coverage area can also manually update using HTC sync manager and the stock  2.23.502.3 RUU firmware packaged with a hefty size of 1.5 GB.

AT&T HTC One M8 4.4.3 OTA Update version 2.23.502.3
You can be directly download the Android 4.4.3 RUU version 2.23.502.3  here:
http://dl3.htc.com/application/RUU_M8_UL_K443_SENSE60_ATT_MR_Cingular_US_2.23.502.3_signed_2.exe

Source: HTC

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