FIRMWARE: Samsung Galaxy S3 (International), Android 4.3 I9300XXUGML2
Yet another Android 4.3 firmware was released for the Samsung Galaxy S3 (International) I9300XXUGML2.This firmware update (I9300XXUGML2) is for AUTSwitzerland users and is available via OTA. If for some reason you can not upgrade via OTA, follow the manual installation guide below.
First of all, as always, backup your phone just in case something goes wrong. If you have ClockWorkMod Recovery installed go and make a full backup of your GS3. If not you can download the latest release recovery-cwmtouch-6.0.4.4-GTI9300.tar from the download links at the end.
Open Odin 3.09 and connect your phone to the computer preferably using the original USB cable that came with the phone. Check the "Auto Reboot" and "F. Reset Time" check boxes. Click the "AP" button and select the recovery-cwmtouch-6.0.4.4-GTI9300.tar file you downloaded from the links.
Finally click "Start" and wait a few minutes until CWM Recovery is installed on your phone. Once the installation is complete the phone will reboot. To enter CWM Recovery, power off your phone, remove the USB cable and hold the Volume Up + Home + Power buttons together. After that, follow the instructions to create a backup of your phone, preferably on an external SD card. That way no matter what happens with the phone you will always have a full backup ready to be restored.
If you encounter any problems like boot loops or failure to start after upgrading to the new firmware, boot your GS3 into recovery mode and do a wipe / factory reset (this will erase all the data from the phone, including the internal SD card).
First of all, as always, backup your phone just in case something goes wrong. If you have ClockWorkMod Recovery installed go and make a full backup of your GS3. If not you can download the latest release recovery-cwmtouch-6.0.4.4-GTI9300.tar from the download links at the end.
How to install ClockWorkMod Recovery
To install ClockWorkMod Recovery on your Samsung Galaxy S3, GT-19300 only, turn off the phone and hold the Volume Down + Home + Power buttons together until you see a warning message. Press the Volume Up button to put your phone in download more or so called Odin download mode.Open Odin 3.09 and connect your phone to the computer preferably using the original USB cable that came with the phone. Check the "Auto Reboot" and "F. Reset Time" check boxes. Click the "AP" button and select the recovery-cwmtouch-6.0.4.4-GTI9300.tar file you downloaded from the links.
Finally click "Start" and wait a few minutes until CWM Recovery is installed on your phone. Once the installation is complete the phone will reboot. To enter CWM Recovery, power off your phone, remove the USB cable and hold the Volume Up + Home + Power buttons together. After that, follow the instructions to create a backup of your phone, preferably on an external SD card. That way no matter what happens with the phone you will always have a full backup ready to be restored.
How to install the Android 4.3 I9300XXUGML2 firmware
After you created the backup, turn off your phone and put it into download mode by holding the Volume Down + Home + Power buttons as previously. Open Odin and connect the phone. Download the firmware from the link below and extract the ZIP file.- Add AP_I9300XXUGML2_XXXXXXXX.tar.md5 to AP
- Add BL_I9300XXUGML2_XXXXXXXX.tar.md5 to BL
- Add CP_I9300XXUGML2_XXXXXX.tar.md5 to CP
- Add CSC_ODD_I9300XXUGML2_XXXXX.tar.md5 to CSC
- Uncheck the re-partition Option
If you encounter any problems like boot loops or failure to start after upgrading to the new firmware, boot your GS3 into recovery mode and do a wipe / factory reset (this will erase all the data from the phone, including the internal SD card).