I have Karbonn Android one phone. It is updated to Lollipop 5.1. I read that multi-user option is available in Lollipop. But in Settings the Users option is not available.
How can I enable it? Is it not supported by Android one phones?
You can enable multiuser support without rooting the device by using ADB.
Execute these commands:
adb shell setprop fw.show_multiuserui 1 adb shell setprop fw.max_users 4
The settings might be lost after reboot. I'm sure it's possible to modify the
build.prop file from ADB too, but I'm not that experienced yet.
It is supported, but you must have rooted device.
Download file manager that allows root access(for example: ES File Explorer)
Add these lines at the end of build.prop file:
Save and reboot device
If something went wrong, restore
build.prop backuped version from recovery.
It can be enabled without rooting.
You must have JDK (including platform tools) and proper ADB drivers installed.
c\program files\andrdk\platform-tools. Rename it to "twrp".
platform-toolsfolder holding left-shift and click on "Open command window from here".
adb reboot bootloader -- this will boot phone into fastboot mode.
fastboot boot twrp.img -- this will boot the device into
TWRP recovery temporarily.
mount, then check
adb pull /system/build.prop-- this will copy the
build.prop file using notepad++ (simple notepad may corrupt the file), add the following two lines at the bottom and then save it:
adb push build.prop /system/ -- this will push the edited file.
adb shell cd system chmod 644 build.prop
And finally, go back to recovery using navigation key and click reboot then click system.
Now, you have enabled multiuser without root.
NOTE: Do everything at your own risk. I will not be responsible for any damage to your device.
I posted this because this worked for my Android one.