I just bought new Vonino QS 3G tablet. Vonino is young OEM vendor and there is no community around yet.
I would like to share some tips and tricks.

How to root Vonino QS 3G:
Notice: Success with this application void warranty on your device.
This tablet is based on MediaTek MT8389 processor, so you can use Boromir exploit in
Framaroot from XDA
Just install Framaroot and choose Boromir.

Enable Multiple User mode:
You need:

  • root access
  • working ABD or Terminal emulator apk (like ConnectBot)

For commandline, type adb shell and then su command first.
Enter

pm get-max-users

This should return 1, which is the maximum number of users that the current OS is set up accept.
Next, you’ll need to change that number to something higher.

setprop fw.max_users 3

Now users section will appear under device in system settings