Firmware Go

*Disclaimer:

Android Custom ROM fix ® provide various Firmware Updates and Rooting process along with Custom ROM,Modes,file are all belong  to their owners/developers. The autor of this site or the developers are not responsible,  if you damage or brick your device.Do it on your own risk and follow the instruction properly.

* Important:

Backup important files stored on your device before proceeding with the steps below, so that in case something goes wrong you’ll have backup of all your important files.




÷ How to Update T-Mobile Galaxy S4 to Android 6.0.1 Marshmallow SlimMM ROM:


Step 1 – Download Android 6.0.1 SlimMM ROM and Google Apps for Galaxy S4 to your computer.

Step 2 – Connect and mount your Galaxy S4 USB memory on your computer using the USB cable.

Step 3 – Now copy/paste the downloaded Android 6.0.1 ROM zip and Google Apps zip files to your SD card. Make sure the files are in the SD card root (not in any folder).

Step 4 – Then turn OFF your phone and disconnect from the USB cable.

Step 5 – Now to get in the Recovery Mode. Switch ON the phone while pressing and holding Volume Up + Home + Power buttons together.

Step 6 – Once you are in ClockworkMod Recovery, select perform a full data wipe by selecting “wipe data/factory reset”. Use the Power button to select everything while in the Recovery Mode.


Step 7 – Then, perform a cache wipe by selecting “wipe cache partition” as you can see in the image below.

Step 8 – Now this is optional, but it is recommended to perform a wipe of your dalvik cache as well. You will not get into boot loops or any other errors. From CWM recovery, go to ‘advanced’ and then select “wipe dalvik cache”.

Step 9 – Then go back to the main recovery screen and select “install zip from SD card”.

Step 10 – Now select “choose zip from sdcard”. Using your volume keys, navigate to the Android 6.0.1 ROM zip file that you copied to your SD card and select it using the Power button. Confirm the installation on the next screen and the installation procedure should start now.

Google Apps: Repeat the above step for the Gapps zip file as well and install it on your phone.

Step 11 – After the installation completes, go to “+++++Go Back+++++” and reboot the phone by selecting “reboot system now” from the recovery menu .



Your T-Mobile Galaxy S4 SGH-M919 will boot now and it might take about 5 minutes to boot on your first time. So, please wait.

That’s it! Your T-Mobile Galaxy S4 should now have Android 6.0.1 SlimMM Marshmallow custom ROM installed on your phone! Go to Settings > About phone to verify.


For More Samsung Galaxy S4 Updates Keep Checking Android Custom ROM Fix ™®

That’s all. We hope this guide serves you well. If there’s anything you’d like to be added/changed on this page, PLZ Use the comment box below to contribute more ideas & Suggestions .

Like this post? PLZ Hit the share buttons below to share this article with your friends on Facebook, Google + and Twitter.

PLZ Follow Us On Flipboard 4 More Latest Updates.

Best Regards.™