iPhone 4s/5s/6s/7 plus user are facing iPhone getting frozen or
hanged when receives a missed call. When the phone is locked and receives a
missed call the iPhone will freezes. The iPhone users is not able to press any
button or notification on the screen. The iPhone just sits backs frozen up infinitely.
To fix the iPhone hangs or freezes for incoming
Fix 1: Update Carrier settings
In most of the cases when iPhone freezes for an incoming
calls/missing calls it may be due to carrier setting that has created this
issue.
Please follow below steps to solve the problem:
1.
Go to Settings
2.
Go to Phone section
3.
Scroll down to SIM
Applications
4.
Depending on the menu
offered by the carrier, find a service like "Options",
"Services", etc.
5.
Click on the appropriate
action like "Mobiles Services" (in my case for Morocco/Inwi
"Services Mobiles")
6.
A black popup (like the
one we want to remove) should appear with aditionnal actions
7.
Click on the appropriate
action like "Discreet/Silent response" (in my case for Morocco/Inwi
"Réponse Discrète")
8.
Another black popup
appears with sub actions
9.
Click on the appropriate
action like "Disable" (in my case for Morocco/Inwi
"Désactivé")
10. The problem should be fixed now. You will never see the
popup again.
Fix 2: - Use Siri to unlock
the phone
Hold pressing home button to ask Siri something like
"Calendar", then Siri displays my meetings and click on one of them
so Siri asks for unlocking password. Once the password entered, the popup
disappears and I'm redirected to the lock screen so I can unlock it.
Fix 3: Reboot the iPhone
Restart the iphone (hold press the wake button then confirmed
shutting down the device). This will fix the issue only once.
Fix 4: Use Other SIM cards or carriers.
The problem of SIM cards or carriers could be due to specific
carrier provider as shown in Fix 1. Therefore please check with changing SIM
card of different carrier to see if the issue still persist with the iPhone
Fix 5: Ask for carrier update
It is possible that you network carrier provider like Verizon,
AT&T have rolled out a fix for the issue but you iPhone/SIM have not
received that yet. So please call the support and check for any pending updates
for carrier settings.
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