You can use this firmware file to restore Samsung Galaxy A20s SM-A207M, downgrade or upgrade Samsung Galaxy A20s SM-A207M.
STEP 1 : Download and extract the Samsung SM-A207M Stock ROM (Firmware Flash File) package on the computer.
STEP 2 : After extracting the package, you will get
the Samsung SM-A207M USB Driver, Firmware (ROM), Flash Tool, and How-to
Flash Manual.
STEP 3 : Install the provided USB Driver on the
computer. If in case you have already installed the Samsung SM-A207M USB
Driver on the computer, then SKIP this step.
STEP 4 Follow the Link Guide to Flash the Stock Firmware (flash file) Samsung SM-A207M device