The Wiko Rainbow 3G uses the MediaTek (MT6580) chipset. When you flash a custom recovery (like TWRP) incorrectly, or interrupt an OTA update, the preloader becomes corrupted. Your device becomes a "paperweight." SP Flash Tool, combined with the official stock ROM, is the only software capable of writing to the low-level memory partitions (Preloader, DSP, MBR) to resurrect a dead device.
Once your Wiko Rainbow 3G boots into the setup wizard, follow these steps: Official Wiko Rainbow 3G Stock Rom For SP-Flashtool
SP Flash Tool does not play well with virtual machines (VMWare/VirtualBox) or Mac OS. Use a native Windows PC. The Wiko Rainbow 3G uses the MediaTek (MT6580) chipset
Before you begin, you must download the necessary files. Note: Always verify the hardware version of your specific device (often found under the battery or in the "About Phone" settings) to ensure you download the correct ROM variant. Wiko Rainbow 3G Stock ROM (Firmware): This package
scatter file and the system image files.