it doesnt work like that. there are certain parameters that needs to be precise in order to make the emmc works on another board. for exp bga type, cid, boot size, and many other things, and some of these parameters cant be changed or reset on skhynix chips. its easier to use the exact blank chips or subtitutes chips like samsung. unless you're lucky enough to have a similar chip and parameters that can be modified to fit on the other board. its not impossible but its hard if you didnt know what you're doing. give us some details so we can help you.