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I got a Samsung A40 from Carphone Warehouse in January, on an EE contract. Over the past few months it keeps disconnecting the SIM card and saying 'No SIM card inserted'. It loses signal and the alert box often keeps popping up multiple times over a few minutes. This happens most days and sometimes several times in a day. When I took the SIM card out to have a look it looked like there were some scrapes along the surface of the SIM.
Wondering if there's a fault with the handset that's damaged the SIM? Any ideas on getting it fixed? Thanks.

Damage to the SIM

22 REPLIES 22

Thanks for coming back to me.

You would need to have the old SIM card in the phone to receive the PIN and then the replacement SIM card would be registered within 24 hours.

Can you try this?

Leanne.

New SIM is activated and so far staying connected!

Thanks for all your help.

Thanks for letting us know it's working, @KStimpson.

Let us know if you need any further help.

Jon

@Leanne_T @Jon_K

Unfortunately the new SIM has started disconnecting this morning - it had been working perfectly until then!

Any thoughts?

Thanks

Has it disconnected permanently, or is it working intermittently?

Jon

@Jon_K it's intermittent. It's doing exactly the same as the original SIM

I am sorry to hear this has not resolved the issue for you.

It sounds like this could be the phone, have you tried a factory reset after backing up all your data?

Thanks 🙂

Leanne.

@Leanne_T @Jon_K

I've done a factory reset and it seems okay so far (few hours), but I'll let you know if it starts again.

Thanks

Fingers crossed that's it sorted, @KStimpson. 🙂

Chris

It's just started disconnecting as before again.

@Leanne_T @Christopher_G @Jon_K