Update Galaxy Mega 6.3 LTE (I9205) to XXUAMH2 Android 4.2.2 [How to]

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By Sarmistha Acharya | October 13, 2013 12:44 AM EST

A new firmware updated based on Android 4.2.2 Jelly Bean with build version XXUAMH2 is now available to download for the LTE version of Galaxy Mega 6.3 bearing model number GT-I9025. The latest official build is for the users from United Kingdom.  

Firmware details

PDA: I9205XXUAMH2

CSC: I9205OXXBMH1

MODEM: I9205XXUAMG5

Version: Android 4.2.2

Build date: 26 August

Region United Kingdom 

I9205XXUAMH2 build is available as an Over-The-Air (OTA) update as well as through Samsung Kies. As this is an unbranded version of firmware, it can be installed on any unlocked I9205 unit, regardless of country and region.

Galaxy Mega users, who wish to install XXUAMH2 Android 4.2.2 on their devices manually, may follow our step-by-step guide.  

IBTimes UK reminds its readers that it will not be held liable for any damage to the device. Before installing the official firmware, users are advised to verify that their devices meet following requirements. 

Pre-requisites

1) Install USB Drivers for Samsung Galaxy Mega 6.3 to connect the Android device with computer.

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

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

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

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

6) The phone will lose custom ROM with the installation of official firmware. Also, the custom recovery will be replaced by the stock recovery.

7) The device will no longer belong to a rooted version once official firmware is installed.

8) XXUAMH2 Android 4.2.2 official firmware works only with Samsung Galaxy Mega 6.3 GT-I9205. As flashing this on any other variant might brick the device, verify the model number of the Galaxy Mega by navigating to Settings>> About phone>> Model number

Steps to install XXUAMH2 Android 4.2.2 Jelly Bean on Galaxy Mega 6.3 GT-I9205   

Step-1: Download XXUAMH2 Android 4.2.2 Jelly Bean firmware for Galaxy Mega 6.3 to computer

Step-2: Extract the downloaded firmware zip using winrar/7zip/winzip or any other extracting tool to get a .tar.md5 file with few other files 

Step-3: Download Odin v3.07. Extract the Odin zip to get Odin3 v3.07.exe and some other files  

Step-4: Turn off the Galaxy Mega and wait for five to six seconds for vibration to confirm complete power off

Step-5: Place the phone into Download Mode by pressing and holding Volume Down, Home and Power buttons together until a construction Android robot icon with a warning triangle appears on the phone screen. Now press the Volume Up button to continue to enter Download Mode    

Step-6: Run Odin3 v3.07.exe as Administrator  

Step-7: Connect phone to computer using USB cable while it is in Download mode. Wait for some time until Odin detects the device. When the phone is connected successfully an Added message will appear under Odin. Also, the ID: COM box in Odin will turn blue with the 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. If Odin still fails to recognise the device then re-install USB driver.    

Step-8: Select these files extracted from I9205XXUAMH2 folder to install on the phone

a) Click the PDA button and select the .tar.md5 file

b) Click the Phone button and select file with MODEM in its name

c) Click the CSC button and select file with CSC in its name  

d) Click the PIT button and select the .pit file

Note: Ignore the last three steps (step-b, c and d) if such files do not exist.

 Step-9: Verify Auto Reboot and F.Reset Time checkboxes are selected in Odin window. But uncheck Re-Partition option; select it only when a .pit file is used

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

Step-11: Once the installation process is completed, the phone will restart automatically. The successful installation will be indicated by a PASS message with green background in the extreme left box at the very top of Odin. Now unplug the USB cable from the phone to disconnect it from the computer

XXUAMH2 Android 4.2.2 official firmware should be now installed and running on Galaxy Mega 6.3. Navigate to Settings>> About phone to verify the new software version of the device. 

How to fix bootloop issue

If the Galaxy Mega gets stuck at booting animation (after step-11) or experience bootloop then place the device into recovery mode by pressing and holding  Volume Up, Home and Power buttons together. In recovery mode, perform data wiping task by selecting Wipe data/factory reset. Now select wipe cache partition and once the action is completed, reboot the phone by selecting reboot system now. In recovery mode, use Volume keys to scroll between options and Power button to select the desired option. It should be noted that performing wiping task will erase the internal memory data of the device.

[Source: Honai of Android]

Also read: Update Galaxy S4 I9500 with Official XXUEMJ5 Android 4.3 [GUIDE]

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