Hello,

I'v bought Meizu MX5 32G gold in Russia.
It is a China model (not international). But it had Flyme v. 4 international installed in it.
It was randomly turning off (not standby - complete off) during standby.
So I decided to update it to flyme V5 as was suggested everywhere, but found that update does not succeed because my model is not international.
So i'v switched device id to global one using terminal and scr ipt available online and updated flymeos to V5 global (stable).
Random turn offs disappeared.
But it started to restart during standby.
Then I'v updated Flyme Os to latest available V5 international beta.
I'v found that restarts started to occure very often after I have installed many programs related to network (outlook, social networks etc). Then I'v found out that these restarts are related to the phone feature where you can disable programs network communications in standby mode. You can enable/disable them in power management settings\standby.
If I disable all there then restarts disappear. If I enable them all (or many) then phone restarts every 3 minutes.
So it must be that some system fault is occuring during network communications in standby mode.
Also it looked like if wifi is enabled then restarts occure not so often.

Also i'v found out that it is different for programs.
For example if only Skype is enabled then no restarts.
But if only Outlook is enabled then it restarts.

Please investigate this problem and fix it out in future flyos update.

If you need any assistance in problem investigation please contact me.