# iPhone Data Does Not Work But Calls Do: How to Fix It URL: https://byshahid.com/blog/data-does-not-work-but-calls-do-iphone/ App: Secret Codes: IMEI & Carrier (https://apps.apple.com/us/app/secret-codes-imei-carrier/id6807154322) Author: Muhammad Shahid Updated: 2026-11-04 > Full bars, calls and texts fine, but nothing loads. Voice and data are provisioned separately. Your line can be perfectly registered for calls and texts while the data bearer is switched off, out of allowance, misconfigured or blocked — which is why the bars look reassuring while Safari times out. - **What it does:** Full bars, calls and texts fine, but nothing loads. - **Published for:** any iPhone, Verizon, AT&T, T-Mobile and UScellular - **Type:** iOS setting Full bars, calls and texts fine, but nothing loads. 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). ## Why does this happen and how do I fix it? Voice and data are provisioned separately. Your line can be perfectly registered for calls and texts while the data bearer is switched off, out of allowance, misconfigured or blocked — which is why the bars look reassuring while Safari times out. The usual causes, in rough order of frequency, are: Cellular Data or the per-app data switch turned off, a data allowance exhausted so the carrier has cut you to a trickle, Low Data Mode plus a VPN interfering, a corrupt APN or carrier profile, or a dual-SIM iPhone using the other line for data. Note that a bad APN cannot usually be fixed by hand on a US iPhone — the APN comes from the carrier settings bundle, so the fix is to refresh that bundle or reset network settings rather than to type one in. **Important:** Reset Network Settings erases all saved Wi-Fi passwords and VPN configuration. ## What should I try, in order? - Open Settings, Cellular and confirm Cellular Data is on, then scroll the per-app list and confirm the app you are testing is allowed to use cellular. - Turn off any VPN and turn off Low Data Mode under Settings, Cellular, Cellular Data Options, Data Mode. Then toggle Airplane Mode for 15 seconds. - On a dual-SIM iPhone, check Settings, Cellular, Cellular Data and confirm the line you expect is selected for data. - Check your allowance in your carrier app. Being cut to a few hundred kbps after exceeding a high-speed cap looks exactly like broken data. - Check for a carrier settings update under Settings, General, About, then install any pending iOS update. - Reset Network Settings. If data still fails afterwards, ask the carrier to confirm the data feature is provisioned on the line. ## Which carriers does this apply to? | Published for | any iPhone, Verizon, AT&T, T-Mobile and UScellular | | Type | iOS setting | | Good to know | Available on every iPhone. If the carrier has throttled you for exceeding an allowance, no device-side step will restore full speed. | _Screenshot: The Secret Codes detail screen shows the steps, the carriers and an Open in Phone button._ ## Related fix iphone phone problems - [Calls Drop Constantly](/blog/calls-drop-constantly-iphone/) - [5G Is Slower Than LTE](/blog/5g-is-slower-than-lte-iphone/) - [SOS Or SOS Only In The Status Bar](/blog/sos-or-sos-only-in-the-status-bar-iphone/) - [5G Icon Shows But Nothing Loads](/blog/5g-icon-shows-but-nothing-loads-iphone/) - [No Service Or Searching](/blog/no-service-or-searching-iphone/) - [Carrier Name Missing From The Status Bar](/blog/carrier-name-missing-from-the-status-bar-iphone/) See all [fix iphone phone problems](/blog/iphone-codes/fix-iphone-problems/) 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 should I do about Data Does Not Work But Calls Do? Full bars, calls and texts fine, but nothing loads. Voice and data are provisioned separately. ### What else should I know about Data Does Not Work But Calls Do? Your line can be perfectly registered for calls and texts while the data bearer is switched off, out of allowance, misconfigured or blocked — which is why the bars look reassuring while Safari times out. ### What are the steps for Data Does Not Work But Calls Do? 1. Open Settings, Cellular and confirm Cellular Data is on, then scroll the per-app list and confirm the app you are testing is allowed to use cellular. 2. Turn off any VPN and turn off Low Data Mode under Settings, Cellular, Cellular Data Options, Data Mode. Then toggle Airplane Mode for 15 seconds. 3. On a dual-SIM iPhone, check Settings, Cellular, Cellular Data and confirm the line you expect is selected for data. 4. Check your allowance in your carrier app. Being cut to a few hundred kbps after exceeding a high-speed cap looks exactly like broken data. 5. Check for a carrier settings update under Settings, General, About, then install any pending iOS update. 6. Reset Network Settings. If data still fails afterwards, ask the carrier to confirm the data feature is provisioned on the line. ### Where do I find Data Does Not Work But Calls Do? Mostly in the Settings app, following the steps on this page in order. ### Is there a dial code for Data Does Not Work But Calls Do? No keypad code is listed for it. The way to do it is: Fix. ### Which carriers does Data Does Not Work But Calls Do work on? It is published for any iPhone, Verizon, AT&T, T-Mobile and UScellular. Available on every iPhone. If the carrier has throttled you for exceeding an allowance, no device-side step will restore full speed. ### Is there anything to watch out for with Data Does Not Work But Calls Do? Reset Network Settings erases all saved Wi-Fi passwords and VPN configuration. ### Does Data Does Not Work But Calls Do work on Android phones too? These steps are for iPhone. Android phones have their own menus. ### Will Data Does Not Work But Calls Do work outside the US? The iPhone steps stay the same, although some features depend on your carrier and region. ### What if Data Does Not Work But Calls Do 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 Data Does Not Work But Calls Do? Calls Drop Constantly. Calls connect but end themselves after a minute or two. ### What else is in this category? 5G Is Slower Than LTE. Why your 5G connection can genuinely be the slower one. ## Sources - [Apple Support: SOS, No Service or Searching on iPhone](https://support.apple.com/en-us/120000) - [Apple Support: iPhone User Guide](https://support.apple.com/guide/iphone/welcome/ios)