Software update for the Samsung Galaxy S4 (I337)
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Software update for the Samsung Galaxy S4 (I337)


Latest update
Getting started
Update & verify software
Previous updates

Latest update

  • What's new: Android device security updates

  • Release date: January 19, 2017
  • Android version: 5.1
  • Baseband version: I337UCSGOK3
  • Kernel version: 3.4.0-6185444
  • Build number: LRX22C.I337UCSGOK3
  • File size: 304MB
  • Previous version required: I337UCUGOK2

Getting started

  • You can download the update via Firmware Over the Air (FOTA). 
  • You must connect your device to Wi-Fi to download the update.
  • Although there should be no impacts to settings or data, we recommend that you back up your media files to an SD card, a PC, or using a favorite application (from the Play Store), prior to upgrading the software.
  • In order to receive the latest software update, your device must be on baseband version I337UCUGOK2. If not, repeat the update process until you’ve installed I337UCUGOK2, and then you should be able to install the most recent software update.

Update & verify software

To update the software
  1. Make sure your device is sufficiently charged and connected to Wi-Fi.
  2. From the device home screen, press the Menu key and tap Settings.
  3. From the More tab, tap About device.
  4. Tap Software update > Check for updates.
  5. Follow the on-screen prompts to download and install the update.
  6. The device automatically restarts once the new software successfully installs. 

To verify the software update
  1. From the device home screen, press the Menu key and tap Settings.
  2. From the More tab, tap About device.
  3. The device has the latest software if the Baseband version and Build number match the current update details.

To troubleshoot the software update

Previous updates

DateDetails
Dec. 9, 2015
  • What's new: Security enhancements
  • What's changing: Fix for On Device Encryption (ODE) devices that lock customers out after Lollipop update and password change
  • Android version: 5.0.1
  • Baseband version: I337UCUGOK2
  • Kernel version: 3.4.0-61854544
  • Build number: LRX22C.1337UCUGOK2
  • File size: 415MB
Aug. 11, 2015Android Lollipop software details:
  • Device security improvements
  • Android version: 5.0.1 (Lollipop)
  • Baseband version: I337UCUGOC4
  • Kernel version: 3.4.0-4408911
  • Build number: LRX22C.1337UCUGOC4
  • File Size: 290MB
Android KitKat software details:
  • Device security improvements
  • Android version: 4.4.4 (KitKat)
  • Baseband version: I337UCUFNJ5
  • Kernel version: 3.4.0-2960651
  • Build number: KTU84P.I337UCUFNJ5
  • File Size: 15.8MB
April 7, 2015
  • Upgrade to Android 5.0 Lollipop 
  • Songs, photos, apps, and even recent searches from one Android device can be immediately enjoyed across all of your Android devices.
  • New User Interface look and feel, more fluid motions
  • Priority mode to only allow certain notifications to get through
  • Battery saving features and remaining time left to charge or deplete indicators
  • Smart Lock to secure phone or tablet by pairing it with a trusted device like a wearable or car
  • Most frequently used settings available with just two swipes down from the top screen
  • Removal of Code Scanner, Browser Bar and Softcard apps
  • Android version: 5.0.1 (Lollipop)
  • Baseband version: I337UCUGOC3
  • Kernel version: 3.4.0-4408911
  • Build number: LRX22C.1337UCUGOC3
  • File Size: 947MB
Nov. 2014
  • Android 4.4.4 Update 
  • Miscellaneous improvements, bug fixes and security updates
  • E911 Call issue fix
  • Added Knox 2.0
  • Applications added:
  • Keeper
  • Mail
  • Live
  • Uber
  • Remote Support
  • Device Help
  • Android version: 4.4.4
  • Baseband version: I337UCUFNJ4
  • Kernel version: 3.4.0-2960651 
  • Build number: KTU84P.I337UCUFNJ4
Sept. 2014
  • Connectivity improvements, Security enhancements, Google App updates
  • Android version: 4.4.2
  • Baseband version: I337UCUFNI1
  • Build number: KOT49H.I337UCUFNI1
March 2014
  • Enhancement to premium version of Lookout pre-loaded app
  • Android version: 4.4.2
  • Baseband version: I337UCUFNB1
  • Build number: KOTH49H.1337UCUFNB1

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