This Firmware flash for Samsung Galaxy Pocket Duos with the Model Number is GT-S5303B. Firmware Region is Brazil and CSC code is ZTO . Make sure the Model Number are correct with you device. You can check the Model Number in Setting - About phone (Model Number), If phone can't start you can find it by flipping your phone or among the things you found in the box. This Firmware PDA is S5303BVJAMK1 with OS Ice Cream Sandwich(Android 4.0.4) and the Firmware are build on Mon 13 Jan 2014 08:37:00 am.

Download Firmware Samsung Galaxy Pocket Duos (GT-S5303B)

AP Version: S5303BVJAMK1
CSC Version: S5303BZTOAMK1
Android Version: Ice Cream Sandwich(Android 4.0.4)
Region: ZTO
Country: Brazil
Binary: N/A

Build Date: 2014-01-13 08:37:00
Size: 469.37 MB
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About Phone:

Samsung Galaxy Pocket Duos S5302 Android smartphone. Announced Aug 2012. Features 2.8″ TFT display, 2 MP primary camera, 1200 mAh battery, 3 GB storage.

Admin Nov 06, 2020 GT-S5303B, ZTO

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How to flash firmware

Extract (unzip) the GT-S5303B_ZTO_S5303BVJAMK1......S5303BVJAMK1.zip file. using WinRAR or 7-Zip.
Download Odin Tool 3.14.1
Extract Odin and open it.
Reboot Samsung Phone in Download Mode (hold Home + Power + Volume Down buttons / hold Volume Down + Bixby buttons then plug-in cable)
Connect you Samsung Phone and wait until you get a BLUE sign in Odin.
Add the 1 file Samsung firmware to AP/PDA or 4 files Samsung firmware (AP/BL/CP/CSC) to it's slots.
Do NOT tick any extra boxes. The only options to be ticked are F.Reset Time and Auto-Reboot.
Click the start button, wait for Odin to say 'PASS' in a GREEN sign. Once the flash is complete, your phone will reboot, and you can disconnect your phone from the PC.