Update Galaxy S3 I9300 to Android 4.2.1

Update Galaxy S3 I9300 to Leaked Android 4.2.1 XXUFMB3 Jelly Bean

Android 4.2.1 is still under testing phase by Samsung and they will release the official final Android 4.2.1 Jelly Bean update for the Galaxy S III after the release of the Samsung Galaxy S IV S3 has Android 4.2.1 Now, The latest version of the official and newest upcoming Android 4.2.1 Jelly Bean firmware for the Samsung Galaxy S3 I9300 has been leaked, so during the next following paragraphes I will show you how to manually install the XXUFMB3 OS on your Samsung Galaxy S3 I9300 device. The software is based on the previous JOP40D Jellybean 4.2.1 platform

Update Galaxy S3 I9300 to Leaked Android 4.2.1 XXUFMB3 Jelly Bean Official Firmware

The XXUFMB3 OS is the official update for Samsung Galaxy S3 that will be made available by Samsung for all the Galaxy S3 I9300 smartphones, it mean that till now the firmware can not be OTA or by using KIES flashed on your handset. The XXUFMB3 OS will install the stock Jelly Bean 4.2.1 flavor on your Galaxy S3 as we are not dealing with a custom ROM. So, as you can already tell, if you want to update your phone without waiting for the official release, then you will have to learn how to manually flash the Jelly Bean 4.2.1 XXUFMB3 OS on your Galaxy S3.

Update Galaxy S3 I9300 to Leaked Android 4.2.1 XXUFMB3 Jelly Bean Official Firmware

Samsung Galaxy S3 users may not have to wait long for Android 4.2.1 to make it to their devices. Becouse they can Root Samsung Galaxy S3 on Android 4.2.1 (XXUFMB3) Jelly Bean Leaked Firmware, as the first official test firmware based on Android 4.2.1 Jelly Bean has been leaked online by SamMobile now with the following simple and easy steps , A pre-release version of the 4.2.1 firmware (I9300XXUFMB3) for the Galaxy S3 can be done, the latest Jelly Bean firmware using the manual installation method with this simple and easy steps guide

Key Points to Consider

Android 4.2.1 XXUFMB3 official test firmware and the instructions given in this guide are applicable to the international variant Galaxy S3 I9300 model only. It will not work on any other device. Verify your device's model number by navigating to Settings > About Phone.
You will need to use a Windows running computer with internet connection enabled.
Verify that the correct USB drivers are installed for your Galaxy S3 I9300 on computer, The Galaxy S3 and its USB cable must be near the computer (download USB drivers).
Back up important data and settings on your phone by using one of the recommended custom recovery tools such as ClockworkMod (CWM) or TWRP, as it creates a complete image of the existing phone setup.
Make sure that USB Debugging mode is enabled on the phone by navigating to Settings > Developer Options (if the device is running Android 4.0 or later) or go to Settings > Applications > Development (if the phone is running Android 2.3 or earlier).
Ensure that your phone has at least 85 percent battery charge to prevent get turned off in the middle of the installation procedure due to battery drain while flashing the official test firmware.
Verify that the device is factory unlocked and not locked to a specific carrier On the computer and handset there shouldn’t be any security tools like antivirus programs before proceeding with the firmware installation.
The instructions provided in this guide are meant for reference purpose only. Apply the next steps only for the Samsung Galaxy S3 model number I9300; the Jelly Bean 4.2.1 XXUFMB3 OS can be installed only on the mentioned Samsung Galaxy S3 I9300. Users must proceed at their own risk.

Update Galaxy S3 I9300 to Leaked Android 4.2.1 XXUFMB3 Jelly Bean Official Firmware

How to Update Galaxy S3 I9300 to Android 4.2.1 Jelly Bean with Leaked XXUFMB3 Official Test Firmware

Step 1 - Download Android 4.2.1 I9300XXUFMB3 official test firmware for Galaxy S3 on the computer and extract the zip file.

Step 2 - Download ODIN v1.85 which is needed to install Android 4.2.1 XXUFMB3 firmware on Samsung Galaxy S3 I9300.

Step 3 - Power off your phone and boot into Download Mode. To do so, press and hold Volume Down and Home buttons together, and then tap Power button until the construction Android robot icon with a triangle appears on screen. Hit the Power button again to entry into Download Mode.

Step 4 - Launch ODIN on computer and connect your phone to it while your phone is still in Download Mode.

Step 5 - When the phone connects successfully, one of the ID: COM boxes turns yellow with the corresponding COM port number. This step may take some time. So, do not interrupt the process.

Step 6 - Choose the files that need to be flashed or installed on your phone, which can be found among the extracted files in Step 1.

Click the 'PDA' button and choose the file named 'CODE' or '.md5'.
Tap the 'Phone' button and choose the file named 'MODEM'. Ignore this step if there is no such file.
Hit the 'CSC' button and choose the file named 'CSC'. Ignore this step if such file is missing.
Click the 'PIT' button and choose the .pit file. Ignore this step if such file is absent.

Step 7 - In ODIN, enable Auto Reboot and F. Reset Time options. In case of Re-Partition option, check it ONLY if you chose a .pit file in the previous step.
Step 8 - Hit the Start button in ODIN and the firmware Installation process begins. It would take just a few minutes to complete.

Step 9 - Once the firmware installation is done, your phone will reboot. When the home screen appears, unplug the USB cable to disconnect your phone from computer.

Your Samsung Galaxy S3 is now successfully updated with Android 4.2.1 XXUFMB3 official test firmware. Go to Settings > About Phone to verify the firmware version installed.

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الخميس، 2 مايو 2013