S4 I9505 intermittently cant read or use SIM card.
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My s4 normally reads my SIM card no problems, until about a month ago, when it started intermittently losing access to the SIM card, blocking it from the network and preventing calls. Sometimes a reboot would make it work again for a bit. I tried a few other SIM cards with the same results.
The strange thing is I find if I remove the phones back plastic chassis exposing the main board the phone reads my SIM card no problem, and will work continuously until I put the back chassis back on.
I also found if I carefully put the back chassis back on the phone, but leave one side not fully clicked in place, the phone still reads the SIM card OK, until I click the last few bits in place.
I bought a replacement back chassis and found that the phone works properly with it fitted, using other SIM cards. But once I put my own SIM card in it wont read it properly again. My SIM card works fine in other phones.
Any help or info much appreciated.
My s4 normally reads my SIM card no problems, until about a month ago, when it started intermittently losing access to the SIM card, blocking it from the network and preventing calls. Sometimes a reboot would make it work again for a bit. I tried a few other SIM cards with the same results.
The strange thing is I find if I remove the phones back plastic chassis exposing the main board the phone reads my SIM card no problem, and will work continuously until I put the back chassis back on.
I also found if I carefully put the back chassis back on the phone, but leave one side not fully clicked in place, the phone still reads the SIM card OK, until I click the last few bits in place.
I bought a replacement back chassis and found that the phone works properly with it fitted, using other SIM cards. But once I put my own SIM card in it wont read it properly again. My SIM card works fine in other phones.
Any help or info much appreciated.