Dead after OTA failure. No firmware online. Solution: Universal MT6572 firmware from Hovatek worked fully—Wi-Fi, dual SIM, and display all functional after manually swapping the logo.bin .

[Revised] How to use SP Flash tool to flash Mediatek firmware

A: No. SP Flash Tool works at the boot ROM level, independent of Android.

Ensure your phone has at least 50% battery. Turn the device off completely. Step 2: Install Drivers