I once had a similar problem but in my case i caused because i tampered with the system. Have you tried downloading playservices from an external site. If the playservices you downloaded doesnt work correctly (in my case it gave me the "force stopped" error), you need to install a new firmware which will fix all bugs.
Link to playservices package (...
You should change your phone identification to any other smartphone brand and to change IMEI codes as well but let me tell you that it's against the law and I do not encourage it.
But in your place, I will simply sell it on any online platform and buy another smartphone with not a banned brand such as Samsung or Nokia.