Did upgrade to flyme 220.127.116.11G.
Works OK except of the above mentioned problem.
Any idea how to fix it?
Thank you for your help.
Touching the man button do not bring me back to home screen
Thank you for your comments.
I don’t want to reinstall the upgrade version with clearing data. What you mean by “hardware issue”? Is it fixable?
Well, found out how it is work post upgrading: short upward sliding move from the main virtual button, instead of just touching it.