Well The thing is , tow-boot boot the emmc first , so if you have tow-boot spi-installer on the SD , then the phone will read it and still boot from emmc .... you need to HOLD volume down to boot the SD card , so if you have an OS on the emmc the procedure is as follow
1.Power off the phone
2.Power it on holding RE for a couple sec
3. on the Red light HOLD volume down to boot SD card (should have light blue light instead of yellow)
4. ready to install !
1.Power off the phone
2.Power it on holding RE for a couple sec
3. on the Red light HOLD volume down to boot SD card (should have light blue light instead of yellow)
4. ready to install !