Many thanks to twitter user AlaaMou91004320
video proof is from me:
https://www.youtube.com/watch?v=ZLBSG-9OujE&t=16s
Instructions
------------------------
1. Open Cydia and install File-cmds
2. Install Filza from Cydia
3. Download com.apple.purplebuddy.plist
https://drive.google.com/file/d/1Sec...kanbAcxFN/view
3. Replace the downloaded file with the old one /var/mobile/library/preferences/com.apple.purplebuddy.plist
4. Connect your idevice with laptop and open terminal ssh and connect to ur device
5. Type this command: chflags uchg /var/mobile/Library/Preferences/com.apple.purplebuddy.plist
6. Turn off ur device and turn it on again.
All done