Extract the archive to find the spi.installer.img or mmcboot.installer.img .
Insert the SD card and boot the device while holding a specific button (e.g., Volume Down or a dedicated hardware switch).
Extract the archive to find the spi.installer.img or mmcboot.installer.img .
Insert the SD card and boot the device while holding a specific button (e.g., Volume Down or a dedicated hardware switch). tow-boot bootloader apk