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GT-I9300

(GALAXY S ?) DOWNLOAD FIRMWARE: I9300ZNUBML1

Firmware Details:
Model: GT-I9300 / GALAXY S ?
PDA/AP Version: I9300ZNUBML1
CSC Version: I9300CHUBML1
Bootloader/ BL: I9300ZNUBML1
Region: CHU / China
Carrier/Brand: China Unicom China
OS: Android
OS Version: 4.3
Build Date: N/A
Security Patch Level: N/A
Changelist: 2222515
CRC: 2574469612
Size: 957.53 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