What are you trying to fix (bootloop, FRP lock, software update)? What error message are you seeing in Odin (if any)? I can help troubleshoot the flashing process.
Download the latest version of Odin (v3.10.7 or newer recommended).
If you are flashing to remove a Google lock, you may need the combination firmware to enable USB debugging, followed by flashing the stock firmware, or use a tool to bypass it. samsung-j327a-u5-flash-file-firmware
If you receive a "SW REV CHECK FAIL" error, it means you are attempting to flash a lower binary firmware on a higher U5 version. If you can share:
Install Samsung USB Drivers on your computer. Battery: Charge to at least 50%. Backup: Flashing will erase your data. 2. Downloading the Correct Firmware You must download the stock firmware matching the model and baseband version ending in U5 . What are you trying to fix (bootloop, FRP
Click on and select the CSC file (Use CSC_*** if you want to clean wipe, or HOME_CSC_*** if you want to keep data).
Power off your phone. Press and hold Volume Down + Home + Power buttons simultaneously to enter Download Mode. Download the latest version of Odin (v3
Look for "SM-J327A U5 Firmware" (Ensure it is U5/5).