A custom ROM is a custom version of Android for your device. After you have rooted your device and flashed a custom recovery on it, you can then use the recovery to flash a custom ROM. Thanks to a sizeable community ofdevelopers, there are a lot of these third-party ROMs to choose from (depending on the device) and each one is unique. Developers usually give you the latest version of Android in their ROM, their own custom themes, options, and a ton of other customization options and enhancements.

In this procedure, we’ll show you how to flash a custom ROM on your Samsung Galaxy S5 (T-Mobile).

After flashing a custom ROM on Samsung Galaxy S5 (T-Mobile), you’ll be able to:

Interested? Here’s how to flash a custom ROM on your Samsung Galaxy S5 (T-Mobile):

1. You must be rooted to do this tutorial. Head to our Rooting How To’s section, find your device, and do the How to Root tutorial listed for it there then return to this tutorial to continue.

2. You must also have a custom recovery flashed on your device before doing this tutorial. Head to our Rooting How To’s section, find your device, and do the How to Flash a Custom Recovery tutorial listed for it there then return to this tutorial to continue.

1. Head to our ROM repository and choose your device.

2. Choose a ROM of your liking.

3. Click the download link in the ROM post to be taken to the developer’s page for that ROM.

4. Search through the developer’s page for the download link for the latest version of that ROM (usually located in the first post in a forum or under Downloads).

5. Save the ROM to your desktop of your computer.

1. Connect your device to your PC using the USB cable.

2. Copy the Custom ROM .zip file from your desktop over to the root of your SD card.

3. Once it’s been copied, disconnect your device from your PC.

4. Turn OFF your device.

5. Turn it back on by holding down Volume Up, Home, and Power buttons together.

6. Your device should reboot into recovery mode.

The recovery mode uses Volume buttons for navigation and Power button for making a selection.

7. Select Backup and Restore.

8. Select Backup.

9. Select Yes when prompted and let it backup your device.

10. Once done, select Back and you’ll be back to main menu.

11. Select Wipe data/factory reset.

12. Select Yes when prompted and let it wipe data on your device.

13. Once done, head back to main menu by selecting Back.

14. Select install zip from sdcard followed by choose zip from sdcard.

15. Navigate to the root of your SD card and choose the Custom ROM .zip you copied earlier to be flashed on your device.

16. Select Yes when prompted if you really want to flash the selected .zip file.

17. It’ll begin flashing the file on your device.

18. Once the file’s been flashed, reboot your device by selecting reboot system now.

19. You’re all done!

1. After your have a custom ROM on your device, you can always repeat this process to flash another one and try out different ones until you find one that suits your needs.

By the way, don’t be scared, you can always put your device back to stock by heading to our Rooting How To’s section, finding your device, and doing the How to Unroot tutorial listed for it there.