Unofficial archive. This is a read-only, community-run archive of the Apple Support Community. It is not affiliated with or endorsed by Apple Inc.
lemass176
User level: Level 1 (18 points)

Crackling sounds on iPhone 18 Pro Max during calls

I got an iphone 18 pro max yesterday, Today is my first day using it and on several calls I have heard crackling sounds. Is this a hardware or software issue?

Has anyone else experienced this?


I am using an otter box case which is not blocking the top speaker.

Posted on Sep 21, 2026 3:57 AM

2 replies

WheelieNick
User level: Level 9 (74,110 points)

Sep 21, 2026 7:54 AM in response to lemass176

Hi there


Please try this


  1. Remove the Case: Take off your OtterBox case completely and test a call; rare pressure points or minor misalignments can sometimes affect acoustic seals.
  2. Check Cellular Signal: Move to a different location or test via Wi-Fi calling to rule out poor carrier reception causing static.
  3. Update iOS: Go to Settings > General > Software Update to ensure you are running the latest software version.
  4. Restart the Phone: Do a complete shut down and restart to refresh temporary system files. 


lemass176 Author
User level: Level 1 (18 points)

Sep 21, 2026 8:13 AM in response to WheelieNick

Hi wheelienick,


I took off the cover and tried several calls, still happening.

Its on the latest software and coverage is strong where I am, I tried outside also.

I also restarted it but still happening.


Thanks for your help on this.

Originally posted at discussions.apple.com/thread/256361785