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Viber calls not instantly received

Hi, Oreo 8.1 and still have the same problem: For Viber, WhatsApp, Facebook and other internet communication apps... I don't receive calls and messages notifications until after some minutes. I disabled battery optimization for those apps, did factory reset, and still no luck. Why ?

1 person has this question

 me too...and a lot of other problems...it's so annoying, worst phone ever!!

Tech Wizard

Check if you are having network issues. 

No network issues, all other phones are working flawlessly at home. This phone is total disaster but I found a temporary solution. Go to Battery then background activity and disable all apps except the extremely important ones like the social communication apps.

Tech Wizard

This phone works fine for me!
I get all the calls connected at first try.

Hopefully after changing the battery options, it works for you as well.

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