This Firmware flash for Samsung Galaxy On5 with the Model Number is SM-G550T1. Firmware Region is United States and CSC code is TMK . 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 G550T1UVS2APL1 with OS Marshmallow(Android 6.0.1) and the Firmware are build on Fri 24 Mar 2017 13:53:35 pm.

Download Firmware Samsung Galaxy On5 (SM-G550T1)

AP Version: G550T1UVS2APL1
CSC Version: G550T1TMK2APL1
Android Version: Marshmallow(Android 6.0.1)
Region: TMK
Country: United States
Binary: 2

Build Date: 2017-03-24 13:53:35
Size: 1.28 GB
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About Phone:

Samsung Galaxy On5 Android smartphone. Announced Oct 2015. Features 5.0″ TFT display, Exynos 3475 Quad chipset, 8 MP primary camera, 5 MP front camera, 2600 mAh battery, 8 GB storage, 1.5 GB RAM.

Admin Oct 03, 2020 SM-G550T1, TMK

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How to flash firmware

Extract (unzip) the SM-G550T1_TMK_G550T1UVS2APL1......G550T1UVS2APL1.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.