AT&T Galaxy S5 OTA update to G900AUCU2ANG3 security patches and improvements

AT&T Galaxy S5 users will  receive a 142MB update as Samsung and AT&T has just rolled out  another Android 4.4.2 based software update that bumps up the baseband version to G900AUCU2ANG3 from G900AUCU2AND3.  The G900AUCU2ANG3 update brings security patches, bug-fixes on some issues and among other system improvements.

Here are the changelog details of the G900AUCU2ANG3 OTA update, addressed by AT&T:

· Security updates and patches
· Application installation enhancements
· Accidental emergency dial fixed on the lock screen
· Several lower layer modem crashes and sluggishness improvement enhancements
· E-mail UX enhancements
· S-View cover error
· Re-activation lock improvements

Technical Details of  G900AUCU2ANG3

Android version: 4.4.2
Baseband version: G900AUCU2ANG3
Kernel version: 3.4.0-2178781
Build number: KOT49H G900AUCU2ANG3
AP: G900AUCU2ANG3
CP: G900AUCU2ANG3
CSC:G900AATT2ANG3

Again, the roll out might be in stages, just make sure to do some tweaking if you ain’t receive the OTA update notification on your Galaxy S5 by hitting Settings>>About Device>>Check for Software Update. To check for more info make sure to hit the source below or follow are simple guide.

How to Upgrade the Galaxy S5 to the latest Software Update

Samsung always advises us to prepare the following important notes to consider before performing the software update.  I have also added some useful insights why you should follow this procedures to keep your  phone in safe.

Recharge the phone’s battery – You should make sure your device is fully recharged before performing the software update. Do not also remove the battery during the software update is in progress. A power failures may cause damaged to your device that might results as we so-called “soft-bricks”. If this happens your device may just stuck on Samsung logo or welcome screen and can’t reboot normally.

Backup important data – You should back-up your important files, including contacts, emails, messages, photos, videos, apps and other stuff. Like I said while during software update process is interrupted there is a possibility that your data stored from your device internal SD card may lose or deleted when a sudden unexpected failure happened and it forces you to perform a factory data reset which basically wipes your phone’s memory.Follow the guide here if you don’t yet on how to backup data on your Galaxy S5.

Galaxy S5 has no root – Your device should not been modified or rooted, there is a certain circumstances that a modified and rooted Galaxy S5  may not accept any official software update anymore or it can accept an update but it might harm your device once the update has made. Learn about the new Samsung KNOX security suite. Most known error that says ‘firmware upgrade encountered an issue, please select recovery mode in kies and try again‘ or “Your device has been modified Software update are not available” you should try to avoid that from happening.

Update via Over-The-Air (OTA)

 This is usually how the carrier branded or locked Samsung Galaxy S5, performs a software update.  This method is Firmware Update through over the air or called as OTA update, which usually a notification message will directly sent to you from your network provider or Samsung and notifies you that there is a new update available for download.  If you did not received any notification messages you can manually check fro the update instead.  Doing this you may only tap on your AT&T Galaxy S5 SM-G900A Settings>>About Device, tap Software Update.

• Find “Software update”


• Slide your finger down the display starting from the top edge of your mobile phone.


• Tap the settings icon.


• Tap About device.


• Tap Software update.

It will automatically tells you that a new update is available or your software is up to date when there is none yet. You can simply tap install now when you want to perform an update or install later.

source: AT&T

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