Help Phone doesn't ring, can't attach files.

[Ggawais]

Facing these issues for several months on Huawei Y7 Prime 2019 Android 8.1. Phone doesn't ring in incoming calls. I cannot hear the voice of the caller in incoming and outgoing calls. Calls on WhatsApp, etc works fine. The ringtones setting show empty list. When I open it for sometime the list shows up and I can select a ringtone. Then calls ring and voice comes for a few minutes or hours and then again this issue arises. Also I cannot attach files anywhere, Gmail, WhatsApp, Google, nowhere. When I select the files option it opens files for a second and then exits. Also Camera crashes while taking pictures and screen shot doesn't save except when I clear gallery data and open the app. After a few minutes again same problem starts. Please suggest solutions. These all issues seem interconnected.

 

[Bearsyzf]

Maybe a backup and a Factory reset .

 

[Ggawais]

Maybe a backup and a Factory reset .

Would be a headache for me to backup some data. Looking for something that doesn't involve reset. Just to add Phone rings and camera works in safe mode. Not aware of file attachment problem since Gmail and WhatsApp doesn't work in safe mode.

 

[puppykickr]

Are you using the stock built in apps?
Have any of them gotten updated since before you had the trouble?

Also, this is a dated device, and providers are quickly moving to LTE service.
So if this device is not compliant, be ready to get a new device quickly.

In the mean time, have you tried third party apps?
https://www.simplemobiletools.com/
Simple Mobile Tools has a great collection of apps that replace the stock (usually junk) apps that come with a phone.
(I replace all of the stock apps as soon as possible on all devices, and Simple Mobile Tools is my goto for this.)

As far as the other issues with attachments, how much empty storage is empty on the device?

A good rule of thumb is to always leave the same amount of open space as there is RAM on the device.
Generally, this comes out to about 70% that you can use.
(Not counting any SD card.)

This gives apps room to grow as you use them (they shink back a bit after a time) and for them to work properly.

The idea that clearing some data helps for a short time may be a clue that the device is too cluttered in general.