Meizu 16th problems

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2018-12-23 05:15

Hello, I have recently bought a Meizu 16th. Everything was fine for a month, but now I have faced a couple of problems:
1. fingerprint dissapeared from lockscreen, as well as facial recognition - it doesn't work anymore.
2. cannot update my flyme "update verification failed, download again"
3. cannot open calendar app.
I didn't find answers on the internet, so would be grateful if anyone could help.