How to fix an Apple iPhone XS data connection that keeps disrupted after installing iOS 12.1.4 update [Troubleshooting Guide]

The release of iOS 12.1.4 has brought relief to iPhone owners affected by the dreaded FaceTime bug. But it also inflicted a new set of dilemmas to some users as it ruined some of the phone’s key features. Reports have it that some owners of new iPhones, including iPhone XS, ended up having problems with an unstable cellular data connection after updating their respective devices to iOS 12.1.4.

Apparently, Apple has yet another set of problems to address. If you too are affected with this issue and here to get potential solutions, then this post may be able to help you. Highlighted below are some applicable workarounds that can be used to deal with post-update cellular data connection errors on an iPhone XS. Feel free to refer to this walkthrough when needed.

For owners who are looking for a solution to a different problem, drop by our troubleshooting page for we have already addressed some of the most common problems with this device. Browse through the page to find issues that are similar with yours and use the solutions we suggested. If they don’t work or if you need further assistance don’t hesitate to contact us by filling up our iPhone issues questionnaire.

First solution: Restart the phone.

A simple restart on the phone can do a lot of wonders especially when dealing with random post-update issues. Thus, if you haven’t restarted your device yet, then you must consider this as your first possible solution to try. You can carry out the usual soft reset on your iPhone XS with these steps:

  1. Press and hold the Side/Power button and either Volume buttons simultaneously for a few seconds.
  2. Release the buttons when the Slide to Power Off command appears and then drag the power off slider to the right.
  3. After 30 seconds, press and hold the Power/Side button again until the phone reboots.

A soft reset in iOS devices is also a way of clearing app cache and data. Corrupted apps that caused conflict to your phone’s cellular data functions are therefore rectified.

This reset does not affect any saved information from your phone memory, hence backing up won’t be necessary.

ALSO READ: How to fix Visual Voicemail that stops working on Apple iPhone XS after updating to iOS 12.1.4

Second solution: Reinstall the SIM card.

Cellular problems including data connection errors in mobile devices can also be addressed by reinstalling the SIM card. It’s just another way of refreshing SIM-related functions of your device. Before removing the SIM card, turn off your iPhone. This is recommended to prevent damaging any component or the device itself.

  1. With the phone turned off, insert the SIM ejector into the tiny hole on the SIM card tray. The SIM card tray is located on the side of the phone.
  2. Gently push the ejector tool until the tray pops out.
  3. Pull the tray out slowly and then remove the SIM card from the slot.
  4. Examine the SIM card for any indication of damage like scratches and liquid traces. If there’s none, place the SIM card back into the card slot in the same orientation before it was removed.
  5. When the SIM card is secured in place, insert the SIM tray back into the phone and lock it in place.

When the SIM card tray is locked, turn your iPhone back on and see if that fixes the data connection interruptions.

Third solution: Update carrier settings.

Carrier updates may also offer the required fixes. Network system enhancements from network service providers are usually embedded into every new carrier update they release. Some carrier updates are mandatory or automatically implemented while others are not.

  • To check for carrier updates, you can head over to your iPhone Settings-> General-> About menu. If you see an update detail from the Carrier section, simply follow the onscreen instructions to update your carrier settings.

If that’s not possible, then you can call your service provider and ask further assistance in updating your carrier settings from their end instead.

ALSO READ: How to fix Siri that suddenly stops working on your Apple iPhone XS after updating to iOS 12.1.4

Fourth solution: Reset network settings.

Network-related issues including post-update problems affecting cellular data that are recurring could denote a complex error on the phone’s network system. This usually happens if the new update has overridden your current network settings and the recent overrides had ruined the phone’s network routines. To revert these changes, performing a network settings reset is recommended. This will erase the phone’s current network settings, including Wi-Fi networks, Bluetooth devices, APNs, and other relevant information. Network settings errors caused by the recent update are likewise eliminated. Here’s how it’s done:

  1. From your Home screen, tap on Settings.
  2. Select General.
  3. Scroll down to and then tap on Reset.
  4. Select the option to Reset network settings.
  5. If prompted, enter your passcode then follow the onscreen instructions to confirm network settings reset.

Wait for your phone to finish resetting and then restarts by itself. After it reboots, you can set up and re-configure network options accordingly. Enable Cellular services then try and see if cellular data is already working properly again.

Fifth solution: Restore your iPhone XS through iTunes.

Performing a system restore can be deemed among the last resorts if all else failed to solve the problem. The update might have ruined the phone’s cellular network system and thereby cause persistent data connection error. To fix major system problems like this, you can try performing a standard iOS restore in iTunes. Here’s how:

  1. Open iTunes and connect your iPhone to the computer. If this is the first time you connect your device, you will be prompted to Trust This Computer or enter your device passcode.
  2. Tap on Trust This Computer to continue.
  3. Then select your iPhone when it appears in iTunes.
  4. Navigate to the Summary section, then click the Restore [iPhone] button.
  5. Click the Restore button again if prompted to confirm.

If that still failed to fix the problem, then you may opt to carrying out recovery mode restore or DFU mode restore. Both these restore methods can effectively solve stubborn issues attributed to complex system errors from iOS bugs to malicious software. You can refer to our step-by-step guides on how to carry out a recovery mode restore and DFU mode restore on an iPhone XS. Just visit this site’s troubleshooting page for iPhone XS for more details.

Other options

If none of the aforementioned procedures is able to solve the problem, you may consider using iTunes alternatives to repair major system errors on your iPhone XS from the recent iOS update. You can download and install any of these tools to a compatible computer just like what you do with iTunes. Once you’ve got the software installed, simply connect your iOS device to the computer and instigate iOS repair using the onscreen commands and controls. Among the most reliable tools to use for this purpose are PhoneRescue for iOS, Dr.Fone, iMyFone’s Fixppo, and Tenorshare’s ReiBoot, to name some. Just choose the software you want to use.

Report the problem to your service provider/carrier and let them know how it started. They may be able to do something on their end to rectify the network glitch from the recent iOS update. Or you can also escalate the problem straight to Apple Support to notify them about the issue you’ve encountered after installing iOS 12.1.4 update on your iPhone XS. Doing so will prompt them to assess the problem and develop the required fix patch.

I hope that we’ve been able to help you fix the problem with your device. We would appreciate it if you helped us spread the word so please share this post if you found it helpful. Thank you so much for reading!