downloads tecno in1 pro FRP remove file on your computer
and extract the file.open SP FLASH TOOL on your computer. click
download agent choose button and select DA_SWSEC file then choose scatter
loading file, now click format menu choose manual format flah chag begin
address: 0x2d88000 and change format length: 0x100000 and click start button.
now connect your mobile to the computer with usb cable and mobile frp unlock done.