Ensure the drop-down menu is set to "Download Only" . Unless you are a very advanced user, do not use the "Format All + Download" option, as this can erase critical device information (like the IMEI number) and permanently damage your phone's ability to connect to a mobile network.
If you have the IMEI, you can try downloading factory firmware directly from the Wiko Support Portal. Official Wiko Rainbow 3G Stock Rom For SP-Flashtool
Is your device currently or completely dead ? Ensure the drop-down menu is set to "Download Only"
Unzip the downloaded Stock ROM and SP Flash Tool. Open Tool: Run flash_tool.exe as an administrator. Is your device currently or completely dead
Flashing firmware involves risks. This guide is for educational purposes. If you proceed, you do so at your own risk. Ensure you have the correct firmware for your specific device variant to avoid permanent damage.
Recovers the device from a "hard-bricked" state.
A small window with a green circle checkmark icon labeled will pop up on the screen. Disconnect the USB cable from your phone.