[Q] Enable SDXC write access on KitKat with Locked Bootlaoder LB?
Great community! Great Device! I just a Xperia Z Ultra and I am loving it! Upgraded from a Samsung Skyrocket.
Question. From what I've read it is possible to modify the system partition while maintaining locked bootloader. I would like to enable SDXC card write access without having a rooted phone.
I found this thread that talks about modifying "/system/etc/permissions/platform.xml" to enable access to the SDXC
Seems like it should work for the Xperia Z Ultra.
Is there anyway I can make this change offline without rooting my phone? Perhaps making a backup SEUS, editing and then restoring a modified version with flashtool?
I suppose I could downgrade, root, backup TA, upgrade, flash recovery, root, modify system and then relock.
Any advice on a better way. Does this sound like a reasonable plan?