How to swap internal and external memory in addroid 4.4?

Question

Android

Previously, in android 4.0-4.2 there was a /system/etc/vold.fstab file, in which, after some adjustments, it was possible to swap the memory card and the phone's internal memory in places.
The new version of android 4.4 does not have such a file. I tried editing the build.prop file by adding the line:
persist.sys.vold.switchexternal=1
ro.vold.switchablepair=/storage/sdcard0,/storage/sdcard1
but to no avail.
How can I mount a memory card in kit kat as internal?

Answer 1

I found the solution by flashing the modified kernel for my specific phone model.
forum.xda-developers.com/showthread.php?t=2548081