Manually Update US Cellular Galaxy S6 To Official Android 5.1.1 Lollipop

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Users of US Cellular Galaxy S6 SM-G925R4 have received android 5.1.1 Lollipop OTA update G920R4TYU2BOF7  in the USA. The android 5.1.1 update for the Galaxy S6 was much more expected due to the current firmware's buggy performance and AT&T and T-Mobile has already released it. The OTA is available to download over the air. This new update comes with several bug fixes and performance improvements.

The update has been rolled out beginning 25th June, 2015. And if you haven't received the update yet then we will help you to flash the android 5.1.1 OTA update manually on your US Cellular Galaxy S6. Also take note that after updating to G920R4TYU2BOF7 you can't downgrade your phone for security reasons in Samsung KIES, but don't worry ODIN will do the job. If you find that after updating your phone to android 5.1.1, the battery is draining faster, tethering or hotspot is having some problem or fingerprint scanner not recognizing finger prints then you can downgrade it. After updating your US Cellular Galaxy S6 to G920R4TYU2BOF7 make a factory reset to prevent any problems from previous firmware.

Firmware Details (Galaxy S6)

Model : SM-G920R4
Country : USA (US Cellular)
Version : Android 5.1.1
Changelist : 90673209
Build date : Thu, 11 Jun 2015 13:19:54 +0000
Product code : USC
PDA : G920R4TYU2BOF7
CSC : G920R4USC2BOF7
Update Type : OTA, Manual Update (ODIN)

Before You Begin Read The Instructions Below

• This tutorial is meant to be applied on US Cellular Galaxy S6 model number SM-G920R4 . 
• This is an official update so your data won't be lost, but backing up data is crucial since we may need to perform a factory reset at the end of the tutorial to prevent errors from previous bugs if you are using ODIN, if you are using OTA then no need to backup data.
• Rooted phone users can only use the manual method to install the android 5.1.1 Lollipop update on their phones. After updating the root access will be revoked. Backup data at any cost.
• Enable USB debugging by going to 'Settings>Developer options>USB debugging'. If Developer options is not visible then go to 'Settings>About device'. Tap the build number 10 times to unlock 'Developer options'.
• The battery should be charged to more than 60%.
• Before following this tutorial make sure that you have checked your phone for software update and after checking the notification doesn't appear. If OTA update is being shown on your US Cellular S6 then skip the manual method.

Downloads Required

• ODIN v3.10.6 : Download
• Samsung USB Drivers : Download
• Android 5.1.1 Lollipop G920R4TYU2BOF7 ROM for US Cellular Galaxy S6 : Download

Manually Flash Android 5.1.1 Lollipop OTA On US Cellular Samsung Galaxy S6 SM-G920R4

• Download the Samsung USB drivers for android phones and install it on your PC.
• Download the ODIN v3.10.6 and Lollipop ROM and extract them in separate folders. SamMobile may ask you to create a free account before downloading the ROM. So, do it.
• Now Switch off your US CELLULAR Galaxy S6 and reboot it in ODIN/Download mode, by pressing power+home+volume down buttons at the same time.
• A warning will appear, press the 'Volume Up' button to enter into download/odin mode.
• Now open 'odin.exe' on your PC and connect the phone to PC via USB cable.
• Let odin recognize your phone. When it is recognized by odin the field under <ID:COM> in odin will turn blue and you will see a message "<ID:0/016> Added".
• Make sure that only "Auto Reboot", and "F.Reset Time" options should be checked. Do not change other settings of ODIN.
• Now check 'AP' and click it and select the firmware file G920R4TYU2BOF7 tar.md5 Android 5.1.1 file from the folder where you saved it.
• Wait for few seconds till ODIN finishes some checks.  
• Click 'Start' to initiate the flashing process. When the process is completed odin will return a message 'PASS'.  
• When your phone first boots to home screen (may take longer, 15 minutes or more) then disconnect it from PC.  Now check the android version in 'Settings>About device>Android version'.
• You have successfully updated your US Cellular Samsung Galaxy S6 SM-G920R4 to official android 5.1.1 G920R4TYU2BOF7 firmware.
• If you are using a Samsung Gear device with your US Cellular Galaxy S6 then update the 'Samsung Gear Manager' app after updating your phone to android 5.1.1.

Troubleshooting

• If ODIN fails in between, then repeat the procedure. However it hardly happens.
• If after updating to G920R4TYU2BOF7 android 5.1.1 you see that your US Cellular Galaxy S6 has become slow or doesn't booting to home screen even after 20 minutes, then do a factory reset in recovery mode.
• Before doing factory reset, make sure you have backed up your personal data.

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