Tips & Tutorials

Update AT&T Galaxy S2 Skyrocket SGH-I727 to Android 4.2.2 CM10.1 M2 Jelly Bean Custom ROM

AT&T Samsung Galaxy S2 Skyrocket SGH-I727 can now be updated to CM10.1 Android 4.2.2 custom ROM that brings the latest Jelly Bean software version to your phone. Samsung will be updating this phone officially to Android 4.1.2 Jelly Bean, but not after that. Thanks to CyanogenMod (CM10.1), you can now enjoy the latest most updated Android 4.2.2 Jelly Bean directly from the AOSP sources. CM10.1 custom firmwares have always been very full of features and customizations. You can update AT&T Galaxy S2 Skyrocket SGH-I727 to CM10.1 M2 Android 4.2.2 Jelly Bean custom firmware using the tutorial below. This is not an official release by Google/Samsung, but just a custom ROM which would require a custom recovery like ClockworkMod in order to flash the ROM zip file on your phone.

As you continue reading below, we will guide you through the entire process of how to install CM10.1 M2 Android 4.2.2 Jelly Bean on AT&T Galaxy S2 Skyrocket SGH-I727 with complete steps. Please make sure you backup all your data as given below because this tutorial will wipe your data. Some more precautionary tips have been given, which is a must-read for everyone. The following tips are important as they will help the installation procedure to go smooth without any issues. Let’s get to the tutorial now.


Disclaimer: All the custom ROMs and firmwares, official software updates, tools, mods or anything mentioned in the tutorial belong to their respective owners/developers. We ( or the developers are not to be held responsible if you damage or brick your device. We don’t have you on gun point to try out this tutorial 😉

CM10.1 M2 Android 4.2.2 Jelly Bean ROM Details:

NOTE: Since this is a nightly build, make sure you know that after installing this firmware update, your Android device can get FC errors, boot loops, several other bugs, apps might not work or worse, your phone might not boot. To fix, you will have to reinstall stock firmware or any other stable custom ROM.

UPDATE: CM10.1 Milestone 3 ROM is now available for this phone. Read the tutorial here!

Samsung Galaxy S2 Skyrocket USB Drivers

You will need to connect your Android phone with the computer. For that, please make sure you have installed the USB drivers for Samsung Galaxy S2 Skyrocket properly. If not, you can download the latest official drivers from our Android USB Drivers section here:

Download Samsung Galaxy S2 Skyrocket USB drivers!

Backup and Other Important Tips

Done with the USB drivers? Perfect. The tutorial is on the next page, but first, please take a look at the following tips and important points you need to take care of. These are important, as we don’t want anyone losing their personal data or apps:

Always backup your important data that you might need after you install a new custom ROM, an official software update or anything else. Make a backup for just in case, you never know when anything might go wrong. See below for some tips on how to backup data:

Samsung users can also back up data using Samsung KIES. If you backup data manually, you get more options what to choose from and it is very easy to move data across Android devices from different manufacturers, i.e moving Samsung Galaxy Note backup data to HTC One X.

If you already have a custom recovery (ClockworkMod, TWRP etc.) installed on your phone, we strongly recommend a backup using that as it creates a complete image of your existing phone set up.

A few more optional tips that you should remember:

1. Having problems connecting your Android phone to the computer? You need to enable USB debugging mode. See here: How to Enable USB Debugging — for Gingerbread, Ice Cream Sandwich and Jelly Bean.

2. Make sure your Android device is charged up to 80-85% battery level. This might help you: How to Check Battery Percentage. Why? Because, if your phone goes off suddenly while installing a custom ROM, flashing an official firmware update or installing mods etc. — your phone might get bricked or go dead permanently. No one wants that, right?

4. Most of the tutorials and how-to guides on Team Android are for factory unlocked Android phones and tablets. We recommend NOT to try our guides if your phone is locked to a carrier, unless we have specified the carrier name or device model.

If you find the above tips useful and they were helpful to you, please consider giving us a +1 or LIKE to thank us!

All set and ready? Good. You can now proceed with the tutorial on the next page and update AT&T Galaxy S2 Skyrocket SGH-I727 to CM10.1 M2 Android 4.2.2 Jelly Bean custom firmware.