iPhone
iPad
MacBook
iMac and Mac
Apple Watch
Samsung
Xiaomi
Huawei
OPPO
PlayStation- First make sure airplane mode is off and restart the phone.
- Try the SIM card in another phone: if it has no service there either, the line or card is the problem.
- Your carrier’s store or customer service can help with line or card problems.
- Resetting network settings does not delete your data.
- If the SIM works in another phone, the phone’s SIM tray or network hardware should be checked.
01What does “No service” mean?
When the phone cannot connect to the network, it shows “No service” or “No network”. You cannot make calls, send messages or use mobile data. The cause can be the phone, but also the line or the area.
02Step-by-step fix
- Check airplane mode. If it is on, turn it off; if it is off, turn it on and off again after a few seconds.
- Restart the phone. The network connection is set up again.
- Remove and reinsert the SIM. Wipe it with a clean cloth and make sure it sits fully.
- Try the SIM in another phone. This shows whether the card or the phone is at fault.
- Reset network settings. On Android: Settings › General management (or System) › Reset; on iPhone: Settings › General › Transfer or Reset iPhone › Reset › Reset Network Settings.
- Ask your carrier. They can tell you about local outages, line restrictions or a faulty card.
Menu names vary by brand and software version.
03Where is the problem?
| Situation | Likely cause | What to do |
|---|---|---|
| Nobody nearby has signal | Local outage | Wait, ask your carrier |
| The SIM fails in another phone too | Line or SIM card | Carrier store |
| The SIM works in another phone | Phone’s SIM tray or network hardware | Diagnosis |
| Started after a drop or liquid | Antenna or board | Diagnosis |
04When the phone is the cause
If the SIM works fine in another phone, the phone’s SIM reader, antenna or baseband chip should be checked. Choose your model on our Samsung models or iPhone models page and ask about the fault, or read our Samsung no signal fix guide.
Brand › Model › Repair listChoose your model, ask about the faultSamsung models05How to get your phone to us
Hasanpaşa Mh. Söğütlüçeşme Cd. No: 192 (opposite the mosque car park), Kadıköy. Monday – Friday 09:00 – 20:30 · Saturday 09:30 – 20:30 · Sunday: Please ask.
Free two-way shipping with our contracted carrier from anywhere in Turkey. Send the device without its case, in a well-protected box, with a note giving your phone number and the fault.
Within Istanbul you can send your device by motorbike courier; just send us your address and the fault on WhatsApp.
