The stock firmware shared on uploadrom.com helps you to re-install the Mobile Operating System on your Mobile Device. It also allows you to fix your Mobile device if it has any software error issue, IMEI error issue, Bootloop issue, and a mobile dead issue.
How To Flash Samsung Firmware ?
Extract (unzip) the Samsung firmware file. Recommended using WinRAR or 7-Zip
Download Odin Tool 3.14.1
Extract Odin ZIP file
Open Odin execute file
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
Make sure re-partition is NOT ticked
Click the (START) button, sit back and wait few minutes