At least 50% to prevent the phone from dying mid-flash.
You will typically get five files: BL , AP , CP , CSC , and HOME_CSC . Enter Download Mode: Power off the phone. Press and hold Volume Down + Home + Power simultaneously. samsung-j327t-u4-flash-file-firmware
(A desktop tool to download firmware directly from Samsung servers) At least 50% to prevent the phone from dying mid-flash
When the warning screen appears, press to continue. Load Files in Odin: BL: Bootloader file. AP: System/System partition (this is the largest file). CP: Modem/Radio firmware. samsung-j327t-u4-flash-file-firmware