Turn Airplane Mode on for at least 15 seconds and off, restart the iPhone, check Cellular Data and roaming, update iOS and carrier settings, then contact the carrier.
1
Confirm iPhone eligibility, restrictions, and recovery
Confirm the affected iPhone, current iOS version, active Apple Account, relevant app, and exact control or alert. Make a current backup before beta installation, reset, account, cellular, or content changes, and record Screen Time, Family Sharing, carrier, region, and management restrictions that may legitimately limit the option. Do not remove an eSIM, erase the device, or sign out before preserving recovery details.
2
Start with the supported check
Open Settings, turn Airplane Mode on for at least 15 seconds, then turn it off.
3
Apply the current setting
Restart the iPhone and confirm Cellular Data is on for the intended SIM and app.
4
Test the result
When traveling, verify Data Roaming. Install iOS and carrier settings updates.
5
Escalate safely
Contact the carrier to confirm the account and network. Reset Network Settings only after noting that saved Wi-Fi, VPN, and APN settings are erased.
6
Verify the intended result before broader recovery
Repeat the exact task described by “Fix cellular data not working on iPhone” with a harmless test. Confirm the affected app, account, device, file or setting now matches the Answer, then recheck it after one fresh session or restart when that is part of the supported workflow. Keep the original data and recorded starting state until the result is stable; if only one component still fails, keep further recovery limited to that component.
Video walkthrough
If it does not work
If cellular data remains unavailable, record signal, location, affected line, carrier settings, plan and whether calls or another device work. Contact the carrier with that evidence before removing an eSIM or resetting network settings, because those actions discard saved connectivity details.
ⓘ Sources and verification
Checked against official documentation on . Scope: iPhone & iPad & PC & mobile.
Follow the linked first-party guidance if labels differ after a platform update.
