Cannot make/receive any calls

[slonnnik]

Hi
I cannot make/receive any calls on my phone.
Phone shows good 4G connection. When I run "Signal Strenght" application it shows -96dBm
I can use data with no problem -> internet works fine

But when I try to make a call it just drops without connecting to other side
When somebody tries to call me there is busy signal.

Is this a problem with my phone or my provider?

Thank you

 

[czeck.page]

Hi, you have a last version?..

 

[slonnnik]

Hi, you have a last version?..

Yes, January update

 

[czeck.page]

Yes, January update

Open dialer and type *#*#4636#*#* and try reconfirm some setting

 

[slonnnik]

Open dialer and type *#*#4636#*#* and try reconfirm some setting

I'm not really sure what should I reconfirm in there

 

[slonnnik]

it is working now. magic :silly:

 

[slonnnik]

I have update my phone today to latest security update, I believe it is March update
And my phone is not working again. I can access data (4G), but I cannot make/receive any calls

Can you please advice what might be wrong? and how can I correct it?

 

[nikaarchuadze]

have you tried doing factory reset?

 

[slonnnik]

no I have not tried it. I just found out today.
Anyway, that should not be a first option right?

 

[slonnnik]

any help please?

 

[fikadit]

You can use 4G for calling if your provider support voLTE, so make sure your provider support this.

If not you must adjust network network selection.
Try dial *#*#4636#*#* >> phone information and select your network as LTE/WCDMA or LTE/UMTS (make improvisation on this, combine with the knowledge from your provider). So your provider will flexibly choose the network. It also depends on your signal strength. If you have strong 4G signal it'll switch to 3G when on call and switch to 4G automatically when call dropped and back to internet connectivity.

 

[slonnnik]

You can use 4G for calling if your provider support voLTE, so make sure your provider support this.

If not you must adjust network network selection.
Try dial *#*#4636#*#* >> phone information and select your network as LTE/WCDMA or LTE/UMTS (make improvisation on this, combine with the knowledge from your provider). So your provider will flexibly choose the network. It also depends on your signal strength. If you have strong 4G signal it'll switch to 3G when on call and switch to 4G automatically when call dropped and back to internet connectivity.

The issue is that I'm using the phone with the same provider for couple of years now. I had this issue before and it was solved by itself in a day or two.
Right now, the issue started after March security update.
So I know that mu phone works with my provider's network. It just, I do not know what happened in that update and how to correct it.

 

[slonnnik]

I went to settings and choose preferred network as 3G. and suddenly I can make a call. miracle.
So I went back and changed it back to 4G. and it still works.

 

[fikadit]

The issue is that I'm using the phone with the same provider for couple of years now. I had this issue before and it was solved by itself in a day or two.
Right now, the issue started after March security update.
So I know that mu phone works with my provider's network. It just, I do not know what happened in that update and how to correct it.

Yeah maybe some tiny bugs affect the "automatic switch" between 3G/4G when oncall/internet in this update. Try the *#*#4636#*#* method above.

---------- Post added at 12:49 PM ---------- Previous post was at 12:49 PM ----------

I went to settings and choose preferred network as 3G. and suddenly I can make a call. miracle.
So I went back and changed it back to 4G. and it still works.

This may works too.