Make sure that Samsung Galaxy battery is charged more than 30%. Download and extract Samsung Odin 3 latest version. Always check Device model number security Patch level and binary version before downloading the combination file. Also install a latest version of Samsung USB Driver before installing combination file. Tool Flash:
Galaxy A20s SM-A207M Read first Here you find all the latest Samsung firmwares for the Galaxy A20s SM-A207M , if you want to flash your device with the newest Samsung software. Before downloading, make sure your device has the exact model code SM-A207M .