Cellular network issues on iPhone after iOS 18.3.2 update

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Level 1

12 points

Cellular network issues on iPhone after iOS 18.3.2 update

I am experiencing issues with my cellular network after the ios 18.3.2 update.

I am working overseas and i am using 2 carriers which 1 is provided by the company (physical sim card) I'm working with overseas and the other (esim, roaming when abroad) is from the country I am from. I've set my company provided carrier as primary. The problem is when I on both carriers at the same time, both became unstable and frequently drop to zero. I could only use 1 carrier at a time. I dont have this issue before update. I've tried full network reset as well as full restore on my phone but nothing helps. Anybody faced the same issue?

[Re-Titled by Moderator]

iPhone 15 Pro, iOS 18

Posted on Mar 22, 2025 02:12 AM

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Answer 1

Axel Foley

Level 10

150,906 points

Mar 22, 2025 06:45 AM in response to Bob_B78

Here are some steps you can try to address this problem:

1. Update Carrier Settings: Go to Settings ➡️ General ➡️ About. If there's an update available for your carrier settings, you'll see a prompt to install it.

2. Disable Cellular Data Switching: Navigate to Settings ➡️ Cellular ➡️ Cellular Data Options and Set Allow Cellular Data Switching. to OFF This might help stabilize the connection by preventing the phone from constantly switching between carriers.

3. Contact Apple Support: Since you've already tried a full network reset and restore, it might be worth reaching out to 👉 Official Apple Support. They can run diagnostics and determine if this is a software-related issue or if it requires further action.

Axel F.

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Answer 2

Bob_B78 Author

Level 1

12 points

Apr 2, 2025 11:41 PM in response to E.Zaur

For those who had similar issues like mine, recommended to perform full update to ios 18.4 via itunes instead of ota. Initially I had tried ota update but the problems still exist. After i perform full restore with the latest ios only then problem solved.

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