1) buy some soldering station for ~100 bucks 2) I have some skills so, not. For me. 3) Flashing with content and --erase-user-data=secure, flash has been repartitioned. theoretically will suit any emmc flash card. The main thing that the physical size of the chip had not been more than 14x18x1.2mm and flash must support eMMC eMMC4.41 standart.