How To: Use CyanogenMod 11 To Install Android 4.4 KitKat On A Samsung Galaxy S II Sky Rocket

Install Android 4.4 KitKat On A Samsung Galaxy S II Sky Rocket

Samsung Galaxy S II Sky Rocket is currently running Android 4.1.2 Jelly Bean and no plans have been announced to update it further.  If you want to get Android KitKat on a Galaxy S II Sky Rocket, you are going to need to use a custom ROM.

CyanogenMod 11 is a custom ROM based on Android 4.4 KitKat that can work on a Galaxy S II Sky Rocket.  If you want to get a taste of KitKat on your device, you can use this ROM.  However, this is not a ROM for everyday use so we recommend you flash it only if you’re familiar with custom ROMs.

Prepare your phone:

  1. This guide is only for a Samsung Galaxy S II Sky Rocket. If you use this with any other device you could brick the device. Check the device’s model by going to Settings>About Device.
  2. Your phone needs to be rooted and have CWM custom recovery installed.
  3. Use CWM to backup your current ROM.
  4. Have and EFS backup made.
  5. Use Titanium backup on your apps with data and system data.
  6. Back up all important contacts, call logs, SMS messages and media files.
  7. Charge phone battery to at least over 60 percent to prevent running out of power before ROM is flashed.


Note: The methods needed to flash custom recoveries, ROMs and to root your phone can result in bricking your device.  Rooting your device will also void the warranty and it will no longer be eligible for free device services from manufacturers or warranty providers.  Be responsible and keep these in mind before you decide to proceed on your own responsibility.  In case a mishap occurs, we or the device manufacturers should never held responsible.

Install Android 4.4 CM 11 Custom ROM on Galaxy S II Sky Rocket:

  1. Install a Compatible Radio first:
  2. Download one of the following:
    • Radio for AT&T (Skyrocket) SGH-I727: UCMC1
    • Radio for Rogers (Skyrocket) SGH-I727R: UXUMA7
  1. Place the radio file you downloaded on the SD card of your phone.
  2. Boot phone into CWM recovery.
  3. “Install>choose zip from sd/ext sd card>select the file”. The radio file will flash.


  1. Flash the ROM:

  1. Download the following:
  1. Place the two downloaded files on the SD card of your phone.
  2. Boot your phone into CWM recovery.
  3. From CWM recovery, choose to wipe the cache and Dalvik cache.
  4. “InstallZip>Choose Zip from Sd/Ext Sdcard>Select the file> Yes”.   
  5. Go back to CWM recovery, repeat the step above but choose the Gapp file.
  6. Reboot your device.

Have you installed CM 11 on your Galaxy S II Sky Rocket?

Share your experience in the comments box below.


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