iPhone
iPad
MacBook
iMac and Mac
Apple Watch
Samsung
Xiaomi
Huawei
OPPO
PlayStation- First check whether other phones nearby have signal and whether your line is active.
- Turn airplane mode on and off, restart the phone and reinsert the SIM card.
- In Settings › Connections › Mobile networks › Network operators, turn on automatic selection.
- General management › Reset › Reset mobile network settings; you may need to re-enter Wi-Fi passwords.
- If dialling *#06# does not show your IMEI, the problem is most likely hardware.
01Is it the phone or the area?
First check whether another phone nearby, ideally on the same carrier, has signal. If everyone has weak signal, the problem is the carrier’s coverage or a temporary outage. Also make sure your line is active. An unpaid bill or a closed line also causes “No service”; your carrier can confirm this.
02Steps to fix no signal on a Samsung
- Turn airplane mode on and off. Switch it on from Quick settings, wait a few seconds and switch it off.
- Restart the phone. The network connection is set up again.
- Check the SIM card. Remove it, wipe it with a clean cloth and reinsert it so it sits fully. If possible, try it in another phone.
- Select the operator automatically. In Settings › Connections › Mobile networks › Network operators, turn on “Select automatically”.
- Update the software. Settings › Software update › Download and install.
- Reset mobile network settings. Settings › General management › Reset › Reset mobile network settings. This does not delete your data; on some models Wi-Fi and Bluetooth connections are reset too.
- Reset the APN settings. If only mobile data fails, try Mobile networks › Access Point Names › Reset to default.
Menu names may differ slightly between One UI versions. Typing “network” into the settings search finds the right section.
03Signs of a hardware fault
If the steps above do not help, the problem may be inside the phone. Dial *#06#: if the IMEI does not appear, there is a fault in the part that handles the network (the baseband chip) or on the board.
| Symptom | Likely cause | What to do |
|---|---|---|
| The SIM card is never detected | SIM tray or card reader | Check and replace the tray |
| No signal only in some places | Coverage or antenna | Compare with another phone |
| Weaker signal after a drop | Antenna cable or connection | Antenna check |
| *#06# shows no IMEI | Baseband chip or board | Board-level repair |
Choose your model on our Samsung models page and ask about the fault on WhatsApp, or see all repair types.
Brand › Model › Repair listChoose your model, ask about the faultSamsung models04How 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.
