is it possible to use an sd card as part of a smartphone's internal storage, even rooting the phone?
I have read that google has been on that feature since android M, but what about versions like kitkat?
thank you in advance for any help.
You need to change the layout of the device
You need to build a specific rom and a specific recovery to adopt the sdcard
What do the specific rom and specific recovery means ?
Let me start by how android manages storage
As per kitakat the storage is determined by the
fstab and the
This define what blocks should be used for what purpose more specifically they determine the partition
To adopt the storage
You need to build a new rom with modified
storage-list.xml (till lollipop because android 6 uses only the
Then build twrp (or any other recovery) with modified
Then flash twrp and wipe everything using advanced wipe a word of
caution this will wipe your sdcard