The Apple iPhone 5s was announced on September 10, 2013. Repair of this device is similar to the previous models, and requires screwdrivers and prying tools. Available as GSM or CDMA / 16, 32, or 64 GB / Silver, Gold, and Space Gray.

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No service on iPhone 5s

I bought a used iPhone 5s and it was meant to be unlocked. I put in my 3 network SIM card and it says 'sim not supported' and it does not let me use the phone. When I put in my O2 network SIM card it lets me use the phone, starts searching however it says 'no service' in the top left of the screen. What I tried:

1. I tested both SIM cards in a different phone and they worked.

2. Resetting network settings.

3. Rebooting the phone.

I did a lot a research on forums but can't find an answer. The phone gets very good WIFI signal so I don't think it's an antenna. And when I put in that 3 network sim it says 'sim not supported' however it shows three circles in the top left corner so I'm not sure if that means 3 bars of signal. The IMEI is: 352054062049680

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I messaged the seller since I bought it from eBay. Haven't got a reply within 1 day. So I opened a case because I can't wait as I don't have a working phone at the moment. I will sort it out with the seller maybe they know what network it was used on or I will return it and get refunded.


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Phones network locked.

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Agreed with Ben your phone is carrier locked to 02 or a virtual network that piggy backs on O2.

You'll get No Service in the top corner when the O2 sim is in the phone until you perform a carrier settings update. Go to settings and about then you should get a message pop up to install one (when connected to wifi) or connect to iTunes a click check for update. If you are still not getting any service the you need to look at other issues.

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Dom will be eternally grateful.
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