This Firmware flash for Samsung Galaxy J3 Pro with the Model Number is SM-J3110. Firmware Region is China and CSC code is CHC Open China. 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 J3110ZCU1AQI1 with OS Lollipop(Android 5.1.1) and the Firmware are build on Wed 13 Sep 2017 13:34:00 pm.

Download Firmware Samsung Galaxy J3 Pro (SM-J3110)

AP Version: J3110ZCU1AQI1
CSC Version: J3110CHCAQI1
Android Version: Lollipop(Android 5.1.1)
Region: CHC Open China
Country: China
Binary: 1

Build Date: 2017-09-13 13:34:00
Size: 949.95 MB
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About Phone:

Samsung Galaxy J3 Pro Android smartphone. Announced Jun 2016. Features 5.0″ Super AMOLED display, Snapdragon 410 chipset, 8 MP primary camera, 5 MP front camera, 2600 mAh battery, 16 GB storage, 2 GB RAM.

Admin Nov 11, 2020 SM-J3110, CHC

What's new

- The latest Android security patch has been applied. 
ㆍDevice security has been further enhanced.

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How to flash firmware

Extract (unzip) the SM-J3110_CHC_J3110ZCU1AQI1......J3110ZCU1AQI1.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.

The Samsung Galaxy J series is a discontinued line of entry-level Android mobile devices produced by the South Korean company Samsung Electronics, first introduced in 2015. This series is a part of Samsung Galaxy series, placed below the low-range Galaxy M.

Source: wikipedia.org