Samsung has rolled out the Android 4.2.2 update for Galaxy Grand DUOS with model number GT-I9082, which runs Android v4.1.2 out of box.

Firmware details

Model name: Galaxy Grand DUOS

Model version: I9082

Firmware version: Android 4.2.2 (Jelly Bean)

Build date: 29 July, 2013

PDA: I9082XXUBMGA

The update bearing build number I9082XXUBMGA is currently available for users in Russia and is expected to reach other parts of the world soon. The official firmware brings several new features such as lockscreen widgets, dedicated toggles menu in the status bar, improved task switching, Daydream screen saver mode and other performance enhancements, notes, Sammobile.

Galaxy Grand DUOS
Samsung has released Android 4.2.2 update for the Galaxy Grand DUOS I9082.

Those who have upgraded their devices to the latest official firmware and are currently looking for a root method may follow our step-by-step guide. Along with rooting the handset, the tutorial installs ClockworkMod (CWM) recovery. The root guide as well as the files used in the method are shared by senior XDA member, chotu222. Head over to the development thread to learn about the root method.

IBTimes UK reminds its readers that it will not be held responsible for any damage to the device. Users are advised to ensure that their devices meet the following requirements.

Per-requisites

1) Install USB Driver for Samsung Galaxy Grand DUOS to connect the Android device with the computer.

2) Enable USB Debugging Mode on phone to connect it with computer and use Android SDK with it. [Press Menu>> Settings>> Applications. From there navigate and click on Development option and check USB Debugging Mode.]

3) As the tutorial might wipe out all data of the phone, create a backup. If the device is having any custom recoveries such as CWM/TWRP already installed then backup data using the recovery.

4) The battery of the Galaxy Grand should have above 80% charge.

5) The device should be factory unlocked and not locked to a particular carrier.

6) Rooting the phone will void its manufacturer's warranty. Users can reclaim the warranty back by unrooting the device later.

7) The root package as well as the CWM recovery package works only on Samsung Galaxy Grand DUOS GT-I9082 running on Android 4.2.2. As applying these to any other variant might brick the device, verify the model number of Galaxy device by navigating to Settings>> About phone>> Model number.

Steps to install CWM Recovery on Galaxy Grand DUOS GT-I9082

Step-1: Download CWM Recovery for Galaxy Grand DUOS to computer

File name: CWM-touch_i9082_chotu.tar.zip [Those who are doing for first time, use this CWM Recovery file link]

Step-2: Extract the downloaded recovery package to get CWM-touch_i9082_chotu.tar.md5 file

Step-3: Download Odin3 v3.04. Extract the Odin zip to get Odin3 v3.04.exe with a few other files

Step-4: Switch off the phone and wait for about five to six seconds for vibration to confirm complete power off

Step-5: Boot the Galaxy Grand DUOS into Download Mode by pressing and holding Volume Down, Power and Home buttons together. Release all three buttons when the GT-I9082 logo appears on the screen. Then press Volume Up button to confirm to enter into Download Mode

Step-6: Connect the phone to the computer using USB cable while it is in Download Mode. Wait until Odin detects the device. When it is connected successfully, an Added message will appear under Odin's message box. Additionally, the ID: COM box in Odin will turn blue with COM port number indicating successful connection.

Note: If the Added message does not come then try another USB port, try the one located at the back side of the computer. In case Odin still fails to recognise the device then re-install USB driver.

Step-7: Run Odin3 v3.04.exe on computer

If there is a pop-up like Installing ADB drivers, do not interrupt. Let it get finished

Step-8: In Odin click the PDA button and select CWM-touch_i9082_chotu.tar.md5 file

Step-9: Configure Odin settings. Verify Auto Reboot and F.Reset Time checkboxes are selected in Odin window. But uncheck the Re-Partition option

Step-10: Hit Start button in Odin. The installation process should begin now and would take a few minutes to complete

Note: If users get md5 hash value failed while flashing the recovery file, remove the md5 from the file and rename to CWM-touch_i9082_chotu.tar and then flash it again.

Step-11: When the installation process is completed, the phone will reboot automatically. Following this a PASS message with green background will appear under Odin indicating successful installation. Unplug the USB cable from the phone safely

Steps to root Galaxy Grand DUOS GT-I9082

Step-1: Download SuperSU root package for Galaxy Grand DUOS to computer

File name: UPDATE-SuperSU-v1.51.zip 

Step-2: Copy the downloaded root file to the external SD card of the phone [Not to internal SD card]

Step-3: Turn off the phone and boot the phone into CWM recovery by pressing and holding Volume Up, Power and Home buttons together

Note: In recovery mode use Volume keys to scroll between options and Power button to select the desired option.

Step-4: In recovery mode, select install zip from sdcard then select choose zip from sdcard. Now browse to the SuperSU root package which was earlier copied to the SD card of the phone. Select it using Power button and confirm installation by selecting Yes on the next screen

Step-5: When the installation process is completed, return to the recovery menu and reboot the phone by selecting reboot system now

When the Galaxy Grand DOUS boots up, it should be rooted successfully on Android 4.2.2 with CWM recovery installed.

[Source: XDA]