Samsung Galaxy S Ⅲ I9300UBUGNJ1 Firmware
Samsung Galaxy S Ⅲ I9300UBUGNJ1 is an Android 4.3 (Jelly) firmware for 4 countries, 4 CSC codes. It is the same firmware configured per region and carrier (CSC). Find your country below, verify the file and download for free. Compared with the previous build I9300UBUGNI1, Android and the bootloader binary are unchanged, so you can switch between the two in both directions. A newer build for GT-I9300 is available: I9300XXEMU8.
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Android 4.3 (Jelly)
OS Version
n/a
Build Date
n/a
Security patch
4
Countries
4
CSC codes
U (30)
Bootloader binary
Bootloader binary U (30). Flashing firmware with a lower binary is usually blocked by Samsung anti-rollback.
Newer builds of Samsung Galaxy S Ⅲ use bootloader binary X (33) (latest: I9300XXEMU8). If your device already runs binary X (33), this build cannot be flashed.
All regional downloads
Pick your region (CSC) to download the matching firmware package.
Paste your current build number from Settings > About phone (About tablet) > Software information, or the output of *#1234#.
Your CSC is in Settings → About phone (About tablet) → Software information, or dial *#1234#. The CSC sets your region's features and network bands. Download the firmware for your country.
MODEM/CP Version: I9300UBUGNI1
Device specifications
- Launched withAndroid 4.0
- Display diagonal12.2 cm (4.8")
- Display resolution720 x 1280 pixels
- Display typeAMOLED
- Processor frequency1.4 GHz
- Rear camera resolution8 MP
- Rear camera typeSingle camera
- SIM cardsSingle SIM
- Battery capacity2100 mAh
- Weight133 g
How to flash I9300UBUGNJ1
- Install Samsung USB Drivers:Download Official Drivers
- Download Odin Flash Tool:
- I9300UBUGNJ1 has bootloader binary U (30). Your device must run binary U (30) or lower: it is the 5th character from the end of your current build number.
- CSC: Use CSC for a clean install, to change the region (CSC code), to downgrade or to repair a device that does not boot.
- HOME_CSC: Use HOME_CSC to update the same model and region while keeping your data. Back up anyway: a failed update can still require a reset.
- The Download Mode key combo depends on the model: see all combos.
Beware: Manually flashing firmwares may brick your device. Use it at your own risk and follow our tutorial steps.
Frequently Asked Questions
I9300UBUGNJ1 is Android 4.3 (Jelly) firmware for Samsung Galaxy S Ⅲ, released for 4 countries, 4 CSC codes.
No. A newer build for GT-I9300 is available: I9300XXEMU8. Install it instead of I9300UBUGNJ1 unless you need this exact version. The previous build was I9300UBUGNI1.
Download the package for your region (CSC) and unzip it. In Odin, load each file into the slot with the same name: BL, AP, CP (if the package has one) and CSC, or HOME_CSC to keep your data. Odin checks the built-in checksum of every .tar.md5 file before flashing. The Samsung Galaxy S Ⅲ must be on bootloader binary U (30) or lower.
This build uses bootloader binary U (30). It can be flashed on a Samsung Galaxy S Ⅲ running binary U (30) or lower; if the device already has a higher binary, Odin stops with "SW REV CHECK FAIL". 49 other builds of this model use the same binary, so you can switch between them in both directions.