If you want to install CM11 on your Samsung Galaxy Gio, then you are in the right place. During this dedicated step by step guide we will be checking on how to update your Galaxy Gio S5660 to Android 4.4.2 KitKat OS and all by flashing an unofficial port (the experimental variant to be more precise) of CM 11 custom software on your Android device. Don’t worry as even though the update is not official, the CM11 can be installed for a daily use, the Android 4.4 firmware being stable and running smoothly on the Samsung Galaxy Gio; but more about this will be explained during the following guidelines.

Galaxy Gio is not a high end device, or not even a new Android based phone. The smartphone has been released by Samsung for a while now, the smartphone being decent in both performances and price. But, when it comes to official updates, the Gio will no longer receive such; so there won’t be any Android 4.4 KitKat OS for the Samsung Galaxy Gio due to hardware limitation. Because of that you will have to install a custom ROM, just like CM 11 firmware.

As stated before, this is the experimental version of CM11. If you want to update with this Android 4.4.2 based firmware and wondering if there are bugs or things that aren’t working properly I must say that according to those who have already flashed CM 11 on the Galaxy Gio, the problems are only minor ones. So, CM11 can be safely installed for a daily use. Also, the bugs or the issues that are present will be resolved soon, as the devs (we should thanks the xda-developers community for this tutorial) are working in providing a more stable software for you.

The Android 4.4.2 OS is not only bringing stock features on your phone. Since we are talking about CM11, the system will be coming with extra apps and capabilities too, that cannot be found on the default version of KK OS. Furthermore, the CM 11 update can be used for improving the performances of your Galaxy Gio and also for: optimizing and customizing the user interface, the looks and the web browsing experience, for improving the battery life, for gaining more speed and lot more. So, if you want to get all that, then you do have to complete this tutorial.

But before enjoying CM11 on your Galaxy Gio, you will first have to install the update on your phone; and for being able to do so the first thing to do will be to root your Android device. Root access must be ensured because a custom ROM can’t be flashed unless the internal system of your handset is unchained; also the firmware will have to use some inbuilt programs, so access to the same must be granted. So, gain root access on your Samsung Galaxy Gio; but you shouldn’t stop here. After that you need to install a custom recovery image on your phone.

The custom recovery image – I recommend you to use CWM or TWRP recovery – is used on the update process so you can’t complete this guide unless you apply these operations. Do note that CWM or TWRP recovery can be flashed only on a rooted system.

Now, these operations aren’t official. Because of that the warranty of your device will get void. If you will need the warranty back then you will have to downgrade to stock Android OS – the root access will be revoked and the default Android software reinstalled.

ON the other hand the best will be to make a backup for saving everything that you have on the internal storage memory of your phone. A wipe will be required and you will lose everything that’s important to you including the EFS folder, contacts list, call logs, text messages, market apps and personal info and accounts. Don’t forget about the current ROM as you can save it too. All you have to do is to use the custom recovery image for making a Nandroid backup.

Of course, a computer or a notebook will be required. As usual, you will have to connect your Galaxy Gio with the computer, so on the smartphone the USB debugging option must be enabled (go to “menu – settings – developer options”). On the same time, on the computer the antivirus and all the other security programs must be disabled – these tools might interfere with the update operation. Furthermore, your device must have at least 60% power left or else you will have to plug in the charger first – if your phone gets turned off in the middle of the flashing operation, it might get bricked out.

Use this tutorial only for installing CM11 Android 4.4.2 KitKat ROM on the Samsung Galaxy Gio model number S5660. The steps from below are compatible only with the mentioned Android device so do try the same procedure if owning a different or similar Android smartphone or tablet – you can brick your devices.

How to Update Galaxy Gio with CM11 custom ROM (Android 4.4.2 KK Firmware)

  1. From this page download the CM 11 firmware file.
  2. Save the Android 4.4.2 KK OS on your computer – just place the file on desktop without unzipping it.
  3. Do the same for the Google Apps package (download the same from here).
  4. Now, connect your handset with the PC by plugging in the USB cord.
  5. Then transfer the downloaded files from desktop on your phone’s SD card.
  6. Remove the USB cable; the computer is no longer useful.
  7. Turn off your Galaxy Gio.
  8. Enter your Android device in recovery mode.
  9. From recovery select “wipe data factory reset”.
  10. Also select “wipe cache partition”.
  11. Then choose “advance” and pick “wipe dalvick cache”.
  12. Now return to main menu of recovery.
  13. Up next you have to select “install zip from SD card” followed by “choose zip from SD card”.
  14. Select the Android 4.4.2 CM11 software; flash the update on your Samsung Galaxy Gio.
  15. You need to repeat this process for installing Google Apps package.
  16. Then from the main menu of recovery you need to select “reboot system now” and you are done.

Perfect. You have learned how to safely update your Samsung Galaxy Gio to latest Android 4.4.2 KitKat OS. CM11 custom ROM firmware has been installed on your Android device, so you are done for now. Just give it a try and test the new software. In the end let us know how things worked for you and if you are enjoying Android 4.4.2 on your Galaxy Gio.

Moises Bercasio · 3 years ago

why is it hard to install?

kamar · 4 years ago

Wifi not working and camera missing can anyone give link for google apps.

abad nurzaman · 5 years ago

camera not work

Jonny Carlberg · 5 years ago

Just bootlooping, seems to happen with whatever rom i use, dunno if it is cause of the CWM or what.
Have wiped everything.

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