# Force A Network Re-Registration on iPhone: How It Works URL: https://byshahid.com/blog/force-a-network-re-registration-iphone/ App: Secret Codes: IMEI & Carrier (https://apps.apple.com/us/app/secret-codes-imei-carrier/id6807154322) Author: Muhammad Shahid Updated: 2026-11-04 > The fastest fix for a line that has dropped off the network. Toggling Airplane Mode makes your iPhone detach from the cellular network and register again from scratch. It clears a surprising number of faults — no signal after a flight, one bar in a known-good area, or data that has silently stopped working. - **What it does:** The fastest fix for a line that has dropped off the network. - **Published for:** any iPhone - **Type:** iOS setting The fastest fix for a line that has dropped off the network. 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](https://apps.apple.com/us/app/secret-codes-imei-carrier/id6807154322). ## What is Force A Network Re-Registration? Toggling Airplane Mode makes your iPhone detach from the cellular network and register again from scratch. It clears a surprising number of faults — no signal after a flight, one bar in a known-good area, or data that has silently stopped working. Leave it on for about ten seconds so the detach completes before you turn it off again. ## How do I do it? - Swipe down from the top-right corner to open Control Centre. - Tap the aeroplane icon to turn Airplane Mode on. - Wait about ten seconds. - Tap it again to turn Airplane Mode off and let your iPhone re-register. ## Which carriers does this apply to? | Published for | any iPhone | | Type | iOS setting | | Good to know | Works on every iPhone and every carrier. | _Screenshot: The Secret Codes detail screen shows the steps, the carriers and an Open in Phone button._ ## Related network and signal - [Personal Hotspot](/blog/personal-hotspot-iphone/) - [Data Roaming](/blog/data-roaming-iphone/) - [Low Data Mode](/blog/low-data-mode-iphone/) - [Review Cellular Data Usage](/blog/review-cellular-data-usage-iphone/) - [Reset Network Settings](/blog/reset-network-settings-iphone/) - [Check For A Carrier Settings Update](/blog/check-for-a-carrier-settings-update-iphone/) See all [network and signal](/blog/iphone-codes/network/) or [every category of iPhone codes](/blog/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. **Secret Codes: IMEI & Carrier** is free on the App Store: https://apps.apple.com/us/app/secret-codes-imei-carrier/id6807154322 ## FAQ ### What is Force A Network Re-Registration on iPhone? The fastest fix for a line that has dropped off the network. Toggling Airplane Mode makes your iPhone detach from the cellular network and register again from scratch. ### What else should I know about Force A Network Re-Registration? It clears a surprising number of faults — no signal after a flight, one bar in a known-good area, or data that has silently stopped working. Leave it on for about ten seconds so the detach completes before you turn it off again. ### What are the steps for Force A Network Re-Registration? 1. Swipe down from the top-right corner to open Control Centre. 2. Tap the aeroplane icon to turn Airplane Mode on. 3. Wait about ten seconds. 4. Tap it again to turn Airplane Mode off and let your iPhone re-register. ### Where do I find Force A Network Re-Registration? On your iPhone, following the steps on this page. ### Is there a dial code for Force A Network Re-Registration? No. On iPhone this is not a dial code, so you use the steps on this page instead. ### Which carriers does Force A Network Re-Registration work on? It is published for any iPhone. Works on every iPhone and every carrier. ### Does Force A Network Re-Registration work on Android phones too? These steps are for iPhone. Android phones have their own menus. ### Will Force A Network Re-Registration work outside the US? The iPhone steps stay the same, although some features depend on your carrier and region. ### What if Force A Network Re-Registration 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 Force A Network Re-Registration? Personal Hotspot. Share your cellular connection with other devices. ### What else is in this category? Data Roaming. Control data use on partner and foreign networks. ### Can I find Force A Network Re-Registration in an app? Yes. Secret Codes, a free iPhone app, includes it with its steps and carrier details. ## Sources - [3GPP TS 22.030: Man-Machine Interface of the phone](https://www.3gpp.org/dynareport/22030.htm) - [Apple Support: iPhone User Guide](https://support.apple.com/guide/iphone/welcome/ios)