To be able to use a new eMMC (or eMCP) (and it worked ) it is necessary:
ROM1 size +ROM2 size+ROM3size +RPMB size <= eMCP/eMMC ROM size
(ROM1 size,ROM2 size,ROM3size ,RPMB size can be found in ExtCSD)
Anyone can confirm or correct? Thanks
rpmb size can be found on the old flash drive, if it's dead then look on the internet for this phone model
if you have an ExtCSD file, then it has the size of rpmb and boot and ufi will set them, but if you have revision flash memory not higher than 1.6