Phone Connected to Wi‑Fi but No Internet
Practical, safe steps for a Wi‑Fi link without internet access, including quick checks, likely causes, what to avoid and when professional help is appropriate.
Read troubleshooting guide →Phone Internet & Network Center
A signal icon does not prove internet access, and a SIM warning does not always mean the phone is carrier locked. Use comparison tests to identify whether a failure follows the phone, one network, one location, one line, or one accessory.
Safety and privacy first
Network resets remove saved connections and may erase Wi-Fi passwords, VPN settings, and paired devices. Record what you need first. Never share SIM PINs, PUK codes, account passwords, or a full IMEI in a public form.
Find which layer is failing
Test another device on the same Wi-Fi, then test this phone on a different network. For cellular service, compare calls, texts, and data in a known-coverage location and confirm the intended SIM or eSIM line is active.
- One Wi-Fi network only: focus on the saved network, router, or internet provider.
- Every Wi-Fi network: focus on phone settings, VPN/DNS, software, or hardware.
- Calls and data both fail: check coverage, outage, account, SIM/eSIM provisioning, and registration.
- Bluetooth fails with one accessory: clear its old pairings and check compatibility.
Carrier lock is only one possible cause
A carrier lock restricts use with another carrier. Activation failure, account suspension, an outage, unsupported bands, incorrect provisioning, a damaged SIM, or phone hardware can produce different but overlapping symptoms.
- Record the exact message.
- Check the original carrier's official unlock policy when the message specifically refers to SIM support, network lock, or an unlock PIN.
- Do not use random PINs: repeated wrong SIM PIN or PUK attempts can block the SIM.
Use resets as a later step
Restarting the phone or toggling Airplane Mode is reversible. Forgetting one Wi-Fi network is narrower than resetting all network settings. Use the broad reset only after you understand what it removes and have recorded credentials.
- Install stable system and carrier-settings updates first.
- Use only APN values published by the carrier.
- Contact the carrier for line activation, eSIM provisioning, account, outage, or unlock eligibility questions.
- Seek repair when failures persist across known-working networks, SIMs, and accessories or follow impact or liquid exposure.
Reviewed troubleshooting
12 related guidesChoose the closest symptom
Phone Won't Connect to Wi‑Fi
Practical, safe steps for failure to join a known wireless network, including quick checks, likely causes, what to avoid and when professional help is appropriate.
Read troubleshooting guide →Wi‑Fi Keeps Disconnecting
Practical, safe steps for an unstable wireless connection, including quick checks, likely causes, what to avoid and when professional help is appropriate.
Read troubleshooting guide →Mobile Data Not Working
Practical, safe steps for missing internet access over the cellular network, including quick checks, likely causes, what to avoid and when professional help is appropriate.
Read troubleshooting guide →Hotspot Not Working
Practical, safe steps for devices unable to use a phone's hotspot, including quick checks, likely causes, what to avoid and when professional help is appropriate.
Read troubleshooting guide →Bluetooth Won't Connect
Practical, safe steps for a failed Bluetooth pairing, including quick checks, likely causes, what to avoid and when professional help is appropriate.
Read troubleshooting guide →Phone Says No SIM
Practical, safe steps for a phone that cannot detect cellular service credentials, including quick checks, likely causes, what to avoid and when professional help is appropriate.
Read troubleshooting guide →Invalid SIM Error
Practical, safe steps for a SIM rejected by the phone or network, including quick checks, likely causes, what to avoid and when professional help is appropriate.
Read troubleshooting guide →SIM Not Supported
Identify why a phone says SIM Not Supported, distinguish a carrier lock from activation or compatibility problems, and use the original carrier's official process.
Read troubleshooting guide →eSIM Not Working
Practical, safe steps for an installed eSIM without service, including quick checks, likely causes, what to avoid and when professional help is appropriate.
Read troubleshooting guide →How to Transfer an eSIM
Practical, safe steps for moving cellular service to another phone, including quick checks, likely causes, what to avoid and when professional help is appropriate.
Read troubleshooting guide →Phone Says No Service
Practical, safe steps for loss of carrier registration, including quick checks, likely causes, what to avoid and when professional help is appropriate.
Read troubleshooting guide →Model and account context
Continue with the right device or carrier
Exact settings and supported features vary by model, software version, carrier, and region.
Official sources
These primary resources support the center’s general guidance. Follow the current instructions for your model and software version.