How to Install Custom ROM on Verizon Galaxy S4 or AT&T Galaxy S4! [Safestrap]

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For those of you who have been waiting to install custom ROM on your Verizon Galaxy S4 with ME7, ME7, MI1, MJ7, or MK2 firmware or AT&T Galaxy S4 with MF3, MK2, NB1, or NC1 firmware, there’s finally a new method using SafeStrap Recovery by XDA user Hashcode.

SafeStrap Recovery is usually used on Motorola devices but it is now implemented on Verizon and AT&T Galaxy S4 to get around Verizon’s lock on the bootloader.

First, you will need to root your Galaxy S4, so follow the Verizon Galaxy S4 ME7 root method before beginning this tutorial if you have Verizon S4 and follow the AT&T Galaxy S4 MF3 root method if you have AT&T S4. (This is for Android 4.2.2 ONLY, for Android 4.4.2 see below!)

UPDATE: If you have Android 4.4.2, you will need to follow How to Root AT&T or Verizon Galaxy S4 on Android 4.4.2 instead!


Step 1. Download the Verizon custom ROM or AT&T custom ROM you want to install on your Galaxy S4 and copy to either internal or external storage on your phone.

Step 2. Download latest version of SafeStrap from XDA:

Download SafeStrap for Verizon Galaxy S4 from XDA

Download SafeStrap for AT&T Galaxy S4 from XDA

Step 3. Open and Install Safestrap APK file using My Files app.


Step 4. Open Safestrap app and choose “Install Recovery” then “Reboot to Recovery”.


Step 5. Choose “Boot Options”.


Step 6. Choose “ROM-Slot-1”.  You will notice you can create up to four different ROM slots.  Yes, you can have 4 different custom ROMs installed if you want.

UPDATE: I no longer recommend using ROM slots as some ROMs are not compatible with ROM slots, just use Stock ROM slot after making a backup ROM!


Step 7. Choose your data partition size and choose “Create ROM slot”.




Step 8. When done, go back to main menu and choose “Wipe”.


Step 9. Swipe to do a factory reset.


Step 10. This is IMPORTANT!  If you get “Unable to mount internal storage” error, you need to reboot recovery.  If you don’t get that error, skip to Step 14.


Step 11. Choose “Reboot” and “System”.


Step 12. When rebooting, hit the Menu button when you see the Safestrap menu during boot.  That will enter you back into Safestrap Recovery.


Step 13. Try wiping again, this time you should just get “Updating partition details”.


Step 14. Next, choose “Install” and find the ROM zip file you want to install and install it.



Step 15. When done installing ROM, reboot and you should see your new custom ROM booted!  That’s it!


Anytime you want to revert back to stock ROM, it’s easy to do.  Just reboot into recovery (hit Menu button during boot when you see Safestrap Recovery menu) and select Stock ROM under Boot Options.


Have a question?

This is an OLD website where we no longer support and we are moving all our new tutorials to our new forum where you can ask questions about any Android device. Please post all your questions at the new Android Rehab Center at HighOnAndroid Forum, thank you for understanding!

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