Permanent guest mode (MX5, 5.1.3.0G)

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2016-06-03 04:43

My phone suddenly turns out guest mode and i don't have anything to recover it from there.

In one morning, i've founded it with there mode. Then i've checked for next things:
1. Screenlock is gone. No things to enter password, fingerprint or something else. After reboot this appears for 3-5 seconds. If i enter password, no guest mode for next 1-2 seconds. After this, phone enable it.
2. Recovery doesn't working. If reboot with VolUP+Power, phone vibrate on meizu logo and reboot. Then phone boot in normal.
3. mzAccount.apk isn't present, so no flyme account.
4. No root.
5. No adb.

Anybody knows how back phone to normal mode?