M4 app viber problem

[rp4]

i have problem with viber app, when phone is awake I receive messages and calls at once, but when screen is off when somebody sent me an a message I recive it for about 5, 10 or 20 minutes or untill I touch the phone on power buton. I turn on STAMINA, activation always ON,  active apps in standby is VIBER, but it doesn t work. the same is when is STAMINA OFF.

on my old phone M2 I didn t have this event.

I apologize for my english

[_alexdon_]

In this case, talk to viber developers as they might know something, perhaps it's on their side.

[rp4]

I'll try to contact them, but my other phone d2303 M2 works great, unlikely that there is still something why Viber app will not work properly on the M4. Tomorrow I'll go in the service to ask about problems