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GT-I9300

(GALAXY S ?) DOWNLOAD FIRMWARE: I9300XXUGNJ2

Firmware Details:
Model: GT-I9300 / GALAXY S ?
PDA/AP Version: I9300XXUGNJ2
CSC Version: I9300XECGNG1
Bootloader/ BL: I9300XXUGNJ2
Region: XEC / Spain
Carrier/Brand: Movistar Spain
OS: Android / Jelly Bean
OS Version: 4.3
Build Date: 08/10/2014
Security Patch Level: N/A
Changelist: 2788594
CRC: 2931904326
Size: 1.13 GB

This firmware also works for:

You will download the app that will download the latest version of the firmware. Why should you use this app instead of download directly?

How to flash your phone with the new firmware?  How to update SAMSUNG device? How to change firmware in your device?

Click here to read the article about installing downloaded software