Update Galaxy S2 I777 to Android 4.4 KitKat Evervol custom ROM

Galaxy S2 I777 from AT&T will soon shine in your hands after you update it to Evervol KitKat 4.4 custom ROM. But to let it amaze you, there needs to be a guide to follow so that the upgrade file joins your phone safe and sound. This here is what we have in store for you.

The requirements and steps which are featured in today’s tutorial have all been thought out for your device. Make sure it’s the the specified model and not another version, because the guide is only compatible with what you are holding in your hand right now!

After you’ve double-checked the model you own and made sure you really want to update it, your phone is going to welcome you with these novelties once it’s laden with the update firmware: a superior battery unit in terms of duration, you will gain new possibilities to personalize your handset, the device will offer new features and apps for your entertainment and more from where these came from. Not to forget that the performance of your smartphone will also gain in quality and whatnot.


we made you sure about wanting an upgrade, you will need to do this next:

  • root your phone via this tutorial;
  • get a custom recovery for it from this page;
  • create as many backups as you think will suffice to save data (including a full NANDroid one);
  • only use a factory unlocked Galaxy S2 SGH-I777;
  • turn on USB Debugging;
  • charge the battery of the handset;
  • make sure you also sync the People and Contacts info with the Gmail account you’ve made a while back.Galaxy-S2-SGH-I777


That’s the end of our pre-requisites. Here come the update steps.

  1. For the first task, we want you to download Google apps package from here and afterwards the .zip archive (file name: ev_skyrocket-4.0.0-skyrocket.zip) on the laptop or comp you’re using. As you are done with the download part of our guide, you can continue with the next step, which urges you to plug the Galaxy S2 I777 to the notebook.
  2. Now that the devices are connected to one another, you should transfer the downloaded files from the laptop to the SD card root of your smartphone and leave them unzipped. Then, if the move is done, you can unplug the handset from the laptop and switch it off after that, because you will have to enter it in this mode: Recovery.
  3. You should now make that NANDroid backup if you did not create it: for the TWRP phone, you have to make this backup by pressing ” Backup”, giving another name to the file and saving it up with a swipe.
  4. In case of a CWM-running device, we recommend you this route: opt for Backup & Restore and back the file up on the SD card of the phone. Then apply a Factory Reset.
  5. The Factory Reset needs to be performed depending on the custom recovery, too. So, should you prefer the TWRP, you have to tap ” Wipe” and confirm the applying of that Factory Reset. In case of a CWM present on your handset, you need to choose Factory Reset/Wipe Data and initiate the process.
  6. You will next have to flash the upgrade firmware. Again, this is going to depend on your preferred custom recovery. If the latter happens to be the CWM, we need you to do this: opt for Install zip from SD card, select Choose zip from SD card and then initiate the flashing of the Evervol Android 4.4 once you find it.
  7. However, if you use the TWRP, you should tap “Install“, locate the update file and then swipe; the installation will be confirmed thus. Repeat all of this for a correct installation of the Google apps.
  8. [sc name=”banner-jos”]The following should now happen: go back to the Recovery screen once the two files have been installed on the phone.
  9. Restart the latter in Normal Mode and wait a bit. After the booting ends, you need to open your Gmail account, type in your info there and enjoy your updated Galaxy S2 I777.

If, however, the booting requires over 5 or 10 minutes, you have to do this: switch it off first, then redo the guide after you turn the device back on.

This is also what you should do if the handset experiences a boot loop. The NANDroid backup file you created before should be used if you want the phone’s old ROM restored on the device.