iPhone Call Drops after 13.5 Update

[Hish99]

Hey guys,
so I've been having some issues on iPhone 11 Pro Max with call dropping, Call Failed, Connecting & then voice lagging and slow 4g speed since iOS 13.5 update. I've read that previously (13.1.4 or something) used to have this issue.

So far the options I've tried:-

◾ I've tried turning Airplane Mode on/off (It gets fixed for some time then having the issue again).
◾ Turning Wifi calling on/off.
◾ Turning VOLTE on/off.
◾ Tried Carrier > Network Selection turning off automatic and choosing manually.
◾ I've changed my sim card to a new one.
◾ I've Fully Reset my device (Downloading IPSW file and Restoring via Itunes & setting up as new device).

I have also called my carrier & Reported about it they said the connection is stable and there's no issues

I didn't had any issues till now with this phone (Almost 7 Months)

Any of you guys also have this issue? Any solutions at all Rather than waiting for an update to fix it?

Thank you.

 

[Böhme417]

Yes. I posted in another thread about how my call quality has been trash since updating to iOS 13.5 (and with a carrier update). I have had several dropped calls, which were virtually non-existent for me before. Calls sound garbled sometimes or just go silent where neither party can hear each other. I don't know what the deal is, but it happening coincided exactly with when I updated my phone.

 

[Hish99]

Yes. I posted in another thread about how my call quality has been trash since updating to iOS 13.5 (and with a carrier update). I have had several dropped calls, which were virtually non-existent for me before. Calls sound garbled sometimes or just go silent where neither party can hear each other. I don't know what the deal is, but it happening coincided exactly with when I updated my phone.

Exactly same for me i had not a single issue before iOS 13.5. I updated to 13.5.1 today hope to see how it goes (It doesn't mention fixes or anything)

 

[Hish99]

apparently it was my carrier.

 

[Böhme417]

Who is your carrier? I contacted mine, and they say the issue isn't on their end.

 

[Hish99]

Who is your carrier? I contacted mine, and they say the issue isn't on their end.

Mine is DIALOG and however i think the issue started after the modem update which was from 1.05.something to 1.06.00 on iOS 13.5.

i have no other clue man this happend to a very rare of people