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GT-I9300

(GALAXY S ?) DOWNLOAD FIRMWARE: I9300UBUGML2

Firmware Details:
Model: GT-I9300 / GALAXY S ?
PDA/AP Version: I9300UBUGML2
CSC Version: I9300UVYUGML2
Bootloader/ BL: I9300UBUGML2
Region: IUS / Mexico
Carrier/Brand: Iusacell Mexico
OS: Android / Jelly Bean
OS Version: 4.3
Build Date: 23/12/2013
Security Patch Level: N/A
Changelist: 2348279
CRC: 2559728769
Size: 899.5 MB

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