Android 4.4 KitKat is out from a while now and even though the Nexus devices had already received the 4.4.2 version of the firmware, the other Android based smartphones and tablets are still stuck on Android Jelly Bean OS. The same is applying for the Samsung Galaxy Grand Duos, which is currently expecting the OTA KitKat update – the exact release date of the software isn’t yet known. Anyway, now you can easily choose to embrace another solution instead: installing a custom ROM firmware based on stock Android 4.4 system. So, during the present tutorial we will be checking on how to update your Galaxy Grand Duos with the new Probam custom ROM.
Probam is a great software that is based on the stock Android 4.4 KitKat OS. Thanks to the devs who have created this ROM (those of xda-developers) now you can install the update on your Samsung Galaxy Grand Duos. So, this is the easiest way in which you can test the Android 4.4 system on your own Android device. As mentioned above, the official roll out of the firmware will be released during the following months, though an exact date hasn’t been yet provided.
If you are wondering the Probam ROM is stable. The only problem is that only the primary SIM slot is working for now; don’t worry, this problem will be soon resolved by the devs and you will be updated with a new variant of the Probam OS. Other than that, the Android 4.4 software is stable and comes without bugs and things that aren’t working properly – according to the Galaxy Grand Duos users who have already flashed this custom ROM.
Since we are dealing with an unofficial port of Android 4.4, the Probam firmware isn’t representing an official update released for your Samsung Galaxy Grand Duos. That’s why the update can be flashed only by using a manual procedure. The installation operation is not hard to complete, though you do have to be careful as if you somehow manage to mess things up, you can even end up in bricking your smartphone. So, check the guidelines from below and don’t perform things without consulting my indications.
Basically, Probam will bring custom features, apps and capabilities that cannot be found on the default version of the Android 4.4 system. These features can then be used for improving the performances of your Grand Duos. How? Well, by using the Probam firmware you will be able to gain more speed, receive more power, enjoy a better web browsing and Android experience and also upgrade the battery life. Furthermore, you will have access to the internal system of your phone, so you will be able to remove in built programs and perform other complex procedures like overclocking your Android device, or remove its bloatware.
In order to obtain all that, first you will have to root your Galaxy Grand Duos. The Android 4.4 based Probam custom ROM can be installed only on a rooted handset. So gain root access before doing anything else. Do note that the root operation isn’t official and by applying the same the warranty of your Android device will get void. The warranty can be restored only if you choose to revoke the root access and you can do the same by downgrading / updating your phone to stock / official Android OS. Final note: on a rooted system the OTA releases can’t be received – you will have to flash the same manually (in our case by using Odin).
After gaining root access you need to replace the stock recovery from your Grand Duos with a custom one. Use the latest version of CWM or TWRP recovery as the Android 4.4 Probam ROM has been installed by the devs and via mentioned apps. CWM recovery is one of the most popular custom recovery images for Android and TWRP recovery represents the touch version of CWM recovery.
After that, backup the Grand Duos data because a wipe will be required; without completing a full backup you can lose everything that’s saved on the internal storage memory of your handset. Basically you need to backup EFS, contacts list, call logs, text messages, internet settings, market apps and also the current ROM via Nandroid backup – you can use the custom recovery image for applying the same. As for the rest of the backup operation you can use free distributed backup and restore apps from Google Play.
Other than that, you have to use a computer on which you first have to deactivate the antivirus and any other security protection that is installed. Then, on your phone you need to enable the USB debugging option – you can do this by going to path “menu – settings – developer options”. Furthermore, you need to check the battery level on your device: if there is less than 60% power left you shouldn’t go any further without plugging in the charger. Finally, you have to be sure that you are using this guide for updating the Samsung Galaxy Grand Duos to Android 4.4 KitKat firmware – this tutorial is compatible only with the mentioned Android based device.
- You need to download the firmware file (from here) and the Google apps package (from here).
- Place these files on your computer first – recommended on desktop.
- Then, on desktop unzip both files.
- Up next connect your Grand Duos with your computer via USB cable.
- Transfer the downloaded files from desktop on your phone’s SD card.
- And unplug the USB cord.
- Turn off your phone.
- Enter recovery mode.
- From recovery select “wipe data factory reset”.
- Then choose “wipe cache partition”.
- Also pick “advance” followed by “wipe dalvick cache”.
- Return to main menu of recovery.
- From there now select “install zip from SD card” followed by “choose zip from SD card”.
- Pick the Android 4.4 KitKat firmware file and flash the custom ROM on your Grand Duos.
- Do the same thing and apply the Google apps package.
- Wait while the file is being flashed.
- In the end, from main menu of recovery select “reboot system now”.
Good job. You have successfully updated your Samsung Galaxy Grand Duos to Android 4.4 KitKat OS. Now the Probam custom ROM firmware is running on your Android device. So what do you say? How do you find the new software? Is everything working and running as expected or you rather use a different platform instead? Feel free and share your thoughts with us by using the comments field from below.