Secret Codes guide
Check For A Carrier Settings Update on iPhone: How It Works
By Muhammad Shahid · · 3 min read
Quick answer
Pull the latest network profile from your carrier. Carrier settings bundles contain APN details, VoLTE and Wi-Fi Calling configuration and network preferences. iOS normally installs them silently, but you can force a check. Open Settings › General › About and wait about thirty seconds. If an update is waiting, a prompt appears. No prompt means you are already current.
| What it does | Pull the latest network profile from your carrier. |
|---|---|
| Published for | any iPhone, Verizon, AT&T, T-Mobile and UScellular |
| Type | iOS setting |
Pull the latest network profile from your carrier. This page explains what it does, how to use it on an iPhone and which carriers it applies to.
I build Secret Codes: IMEI & Carrier, a free iPhone app with 317 checked codes and guides, including this one. If you would rather tap than memorise, get Secret Codes on the App Store.
What is Check For A Carrier Settings Update?
Carrier settings bundles contain APN details, VoLTE and Wi-Fi Calling configuration and network preferences. iOS normally installs them silently, but you can force a check.
Open Settings › General › About and wait about thirty seconds. If an update is waiting, a prompt appears. No prompt means you are already current.
How do I do it?
- Make sure you are connected to Wi-Fi or cellular data.
- Open the Settings app.
- Tap General, then About.
- Stay on the screen for around 30 seconds.
- Tap Update if a carrier settings prompt appears.
Which carriers does this apply to?
| Published for | any iPhone, Verizon, AT&T, T-Mobile and UScellular |
|---|---|
| Type | iOS setting |
| Good to know | Works on every carrier. Requires an active SIM or eSIM and a data connection. |

Related network and signal
- Wi-Fi Calling
- Reset Network Settings
- Switch Between 5G and LTE
- Review Cellular Data Usage
- Choose Your Network Manually
- Low Data Mode
See all network and signal or every category of iPhone codes.
How Secret Codes helps
Secret Codes keeps this and every other entry a search away. Pick your carrier once and each entry says whether it is published for your line. You can save favourites, add a private note, and record whether a code worked on your line.
Frequently asked questions
What is Check For A Carrier Settings Update on iPhone?
Pull the latest network profile from your carrier. Carrier settings bundles contain APN details, VoLTE and Wi-Fi Calling configuration and network preferences. iOS normally installs them silently, but you can force a check. Open Settings › General › About and wait about thirty seconds.
What else should I know about Check For A Carrier Settings Update?
If an update is waiting, a prompt appears. No prompt means you are already current.
What are the steps for Check For A Carrier Settings Update?
1. Make sure you are connected to Wi-Fi or cellular data. 2. Open the Settings app. 3. Tap General, then About. 4. Stay on the screen for around 30 seconds. 5. Tap Update if a carrier settings prompt appears.
Where do I find Check For A Carrier Settings Update?
In the Settings app on your iPhone.
Is there a dial code for Check For A Carrier Settings Update?
No. On iPhone this is not a dial code, so you use the steps on this page instead.
Which carriers does Check For A Carrier Settings Update work on?
It is published for any iPhone, Verizon, AT&T, T-Mobile and UScellular. Works on every carrier. Requires an active SIM or eSIM and a data connection.
Does Check For A Carrier Settings Update work on Android phones too?
These steps are for iPhone. Android phones have their own menus.
Will Check For A Carrier Settings Update work outside the US?
The iPhone steps stay the same, although some features depend on your carrier and region.
What if Check For A Carrier Settings Update does not work on my iPhone?
Check that it applies to your carrier first, because carriers decide which services they offer and can change them. If it should apply to your line, contact your carrier.
What is related to Check For A Carrier Settings Update?
Wi-Fi Calling. Place and receive calls over Wi-Fi when signal is poor.
What else is in this category?
Reset Network Settings. Clear cellular and Wi-Fi configuration back to defaults.
Can I find Check For A Carrier Settings Update in an app?
Yes. Secret Codes, a free iPhone app, includes it with its steps and carrier details.