User level: Level 1 (6 points)Since updating my iPhone 13 Pro Max to iOS 27, I have been experiencing frequent cellular network drops. The cellular connection keeps disconnecting or becoming unstable, even in areas where I previously had good network coverage. This issue started only after the iOS 27 update.
[Re-Titled by Moderator]
Original Title: iOS 27 update issue
Posted on Sep 17, 2026 5:52 AM
User level: Level 9 (64,078 points)Sep 17, 2026 7:51 AM in response to Stevensweet
Connection issues almost always fall in the realm of your cellular service provider. When upgrades and updates are issued, mobile carriers frequently update the firmware and software for the modems and cellular service. Please discuss the issue with your carriers support team. If they can't resolve the issue, post a rely detailing what diagnostics steps they had you perform.
User level: Level 10 (199,348 points)Sep 17, 2026 7:55 AM in response to Stevensweet
Tap Settings > General > About and check to see if there is an update from your carrier.
If yes, install the update.
If no, contact Customer Support at your carrier and ask them to run checks on the phone.
User level: Level 1 (12 points)Sep 17, 2026 8:06 AM in response to Stevensweet
If you are using dual sim then only use single sim,by forwarding all call from your second sim to 1st one and making 2nd sim off.Facing same issue.
[Edited by Moderator]
User level: Level 9 (64,078 points)Sep 17, 2026 8:05 AM in response to DOLAGOBINDA94
DOLAGOBINDA94 wrote:
If you are using dual sim then only use single sim,by forwarding all call from your second sim to 1st one and making 2nd sim off.Facing same issue.Really pathetic developer team.Stupid iOS company
Hi, it's most likely a cellular service provider issue. The providers supply much of the firmware and software for their service.
User level: Level 1 (8 points)Sep 19, 2026 3:47 AM in response to Stevensweet
Please dear apple team solve my cellular service issue on my iPhone 13 Pro
Originally posted at discussions.apple.com/thread/256358885