Friday, August 28, 2015

How to Install G920FXXU2COH2 5.1.1 Update on Galaxy S6 SM-G920F, Without Getting ("BTU") CSC Mismatch Problem

The Samsung Galaxy S6 SM-G920F has recently received an update to build version G920FXXU2COH2 5.1.1 in France. The G920FXXU2COH2 contains several features that mostly taken from the Galaxy Note 5 and the Galaxy S6 Edge+ User Interface design like the Apps icon. There are also some other new features such as the Live broadcasting via Youtube, and few Google apps added in it. The rests of the tweaks are for system improvements for the device performance, stability and bug fixes on some minor issues.

Now, for those advanced users who wants to manually upgrade to G920FXXU2COH2 without waiting to appear it via OTA since the update is only held available in France. You folks can do so by installing the original G920FXXU2COH2 5.1.1 Stock firmware itself. But before you proceed just read thoroughly to the rest of the guide, as this firmware build is not the usual thing we just can easily flashed like the way before.

The G920FXXU2COH2 stock firmware cannot be flashed directly on top of any other countries firmware build that technically running in other CSC system image. If you don't knew what the CSC means, then it is the consumer code of each specific countries, including all mobile network operators.
Each countries and / or mobile network provider has its own default CSC, like for example if you are from UK, your Galaxy S6 should have the CSC's such as BTU, XEU and etc. Now the stock G920FXXU2COH2 5.1.1 that we are going to use here, like for example from France, which basically got the "XEF" CSC file. However, flashing the G920FXXU2COH2 stock firmware on top of any other firmware build like the UK's BTU will not tend to work anymore. It will just give an error saying that you have a CSC mismatched.

Anyway here's some screenshot of the G920FXXU2COH2 5.1.1 Update;
Galaxy S6 G920FXXU2COH2 firmware update

How to manually install the G920FXXU2COH2 Android 5.1.1 Lollipop on Samsung Galaxy S6 (SM-G920F)

Note: This stock firmware is compatible for all Europe Samsung Galaxy S6 with the specification model number “SM-G920F″ version only.


Odin3_v3.10.6 Flasher tool (find it here)
Samsung Galaxy S6 USB driver, find the Android 5.0.2/5.1.1 USB driver version here.
Stock Firmware:
Only flash the build G920FXXU2COH2 on top of the build G920FXXU2BOG8 if your phone is running from other coutries CSC like BTU, XEU and etc.


– Use a PC  with a perfectly working USB serial port.
– Use the supplied USB data cable for your Galaxy S6.
– Make sure that your Galaxy S6 battery is fully recharge.
– Back up all important files stored from your phone’s internal memory – contacts, messages, etc. Use Samsung Smart Switch for PC to back up and restore your files. .
– Enable USB debugging from your phone’s settings. Go to Settings > Applications > Development, and tick the box that says ‘Enable USB Debugging’.
– Perform a factory reset if you have a lot of 3rd party applications installed from your phone, this is useful to gain a smooth flashing. (Just make sure that you already back up all your important files before resetting your device.

Run and Configure Odin3_v3.10.6

Run Odin downloader on your computer’s desktop. Watch out the check-boxes options on the right top of Odin, ensure that the ‘RE-PARTITION’ ,  the ‘AUTO-REBOOT and ‘F.RESET TIME’ remains unmarked. This will make sure that you can factory reset the phone right after the stock firmware flashing has made.

Flash the G920FXXU2BOG8  Stock Firmware

This is only to be made if the device is not technically running with the default CSC. But if the phone already has the its default CSC, then you can directly flash the G920FXXU2COH2 stock firmware.

Now, click on the AP button, then select and load the tar file that you have previously extracted. Here’s how Odin should look like.The “G920FXXU2BOG8_G920FOXA2BOG8_HOME.tar.md5″ should be loaded on the AP button.

Reboot the Galaxy S6 into Download Mode

To set your Galaxy S6 in download mode, just simply switch it off then gently press and hold the “POWER, VOLUME DOWN and HOME” buttons simultaneously. You’ll be then prompted in a warning screen to continue or cancel.

Once the phone screen shows in downloading mode, connect your phone to the PC with the USB cable. You’ll then notice the upper box in Odin that turns in yellow color., it also indicates the COM:ID where the device is being detected and a word “added!!’ on the log box. If somehow those things never showed up, check out the USB cable connection, read again from the top of this post.

Start Flashing

Once all set and ready, hit he “START” button to begin flashing.
Do not touch anything that might interrupt the process to avoid any fatal errors or failures, it may ruin your device if any interruption occurs while already in flashing status.

Now once the flashing successfully completes, as you'll also see Odin display “PASS”once it finishes. Now reboot the phone in recovery mode.

Perform the Factory Data reset in Recovery

Press and hold the Volume Up, Home and Power button. Use the volume keys to select up and down and power or home key to select the option.

1. Select Wipe Data/Factory Reset
2. Next select the Wipe Cache Partition
3. Lastly select Reboot System Now.

Once the your phone now settled with CSC, you may then flash once again the G920FXXU2COH2 stock firmware. You may also check and be able to update to G920FXXU2COH2  via OTA or using Smart Switch manually.  As long you have flashed the stock firmware. However, if the device couldn't see the update, then you must flash the COH2 stock firmware.

Flash the G920FXXU2COH2 (XEF) Stock Firmware

Next flash the G920FXXU2COH2 stock firmware using the same process above. Again, don;t change the Odin's configuration. Just directly load the  (G920FXXU2COH2_G920FXXU2COH2_Home.tar) under the AP slot.

Once the G920FXXU2COH2 flashing is made, perform the factory data reset to wipe the data cache,  then reboot the phone.
That’s it! Your Samsung Galaxy S6 should now runs in Android 5.1.1 Lollipop with build version G920FXXU2COH2.


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