@Dunbrokin If you want to report a bug, your first port of call would be the link in the Support section in the listing of the app in the Open Store. Sometimes it links to an email address. But more often it links to an issue tracker on github, gitlab or some other online version control provider. In the latter cases, you will probabl need to have an account on the platform before being able to report your issue. If it is just some question you have about an app, then I guess posting a query on the forums would be as good a place as any.

@liutaoabab - I haven't tried this out in a long while - maybe it got broken in a recent OTA - will test this tomorrow when I am back in my studio (and on my Meizu Pro 5 as well to see if the problem is only on OPO) Best regards, Steve Berson

@adlinux This is not anything I can help with unfortunatly. You really need someone with your phone to confirm the issues and any fixes. Lets hope you get that answer soon.

@c0n57an71n Ok thanks. should have been more precise: in fact what I'm most interested in is whether the cellular data works, i.e. whether the internet works with SIM (doesn't work at all for me with SIM on the Volla at the moment, ok with wifi) : so it's the conf managing best the SIM APN and cellular data that I want to test.