Bootable Sd Card Android Fix Site
This is the trickiest part. Most Android kernels are compiled without SD boot support. You may need to recompile the kernel with CONFIG_MMC_BLOCK and CONFIG_ANDROID_BOOT_ON_SD enabled. For 99% of users, stick to Method A or use a tool like PhoenixCard (for Allwinner chips) or RKDevTool (for Rockchip).
: A standalone utility specifically for Android that allows you to flash Windows installers or Raspberry Pi images with control over partition schemes (MBR or GPT). bootable sd card android
