https://community.o2.co.uk/t5/Apple/Invalid-SIM/m-p/1110849#M159488 <P>Just a query, Have you been using this sim without problems before? If so you may need to order a new one online or from an O2 shop. Otherwise ring customer services <A href="https://www.o2.co.uk/contactus" target="_self">https://www.o2.co.uk/contactus</A></P> Wed, 28 Feb 2018 18:38:10 GMT Cleoriff 2018-02-28T18:38:10Z https://community.o2.co.uk/t5/Apple/Invalid-SIM/m-p/1110846#M159486 My phone randomly told me today my SIM is invalid. Is there any way to resolve it? Wed, 28 Feb 2018 18:32:31 GMT https://community.o2.co.uk/t5/Apple/Invalid-SIM/m-p/1110846#M159486 Anonymous 2018-02-28T18:32:31Z https://community.o2.co.uk/t5/Apple/Invalid-SIM/m-p/1110848#M159487 <P>Hi @Anonymous Take the sim out and gently clean it with a soft cloth, reinsert and reboot your phone...</P> Wed, 28 Feb 2018 18:34:48 GMT https://community.o2.co.uk/t5/Apple/Invalid-SIM/m-p/1110848#M159487 Cleoriff 2018-02-28T18:34:48Z https://community.o2.co.uk/t5/Apple/Invalid-SIM/m-p/1110849#M159488 <P>Just a query, Have you been using this sim without problems before? If so you may need to order a new one online or from an O2 shop. Otherwise ring customer services <A href="https://www.o2.co.uk/contactus" target="_self">https://www.o2.co.uk/contactus</A></P> Wed, 28 Feb 2018 18:38:10 GMT https://community.o2.co.uk/t5/Apple/Invalid-SIM/m-p/1110849#M159488 Cleoriff 2018-02-28T18:38:10Z https://community.o2.co.uk/t5/Apple/Invalid-SIM/m-p/1110851#M159489 Usually the sign of a failing SIM card. Pop in to an o2 shop for a free replacement before it completely fails. Wed, 28 Feb 2018 18:47:49 GMT https://community.o2.co.uk/t5/Apple/Invalid-SIM/m-p/1110851#M159489 MI5 2018-02-28T18:47:49Z https://community.o2.co.uk/t5/Apple/Invalid-SIM/m-p/1111011#M159492 <P>How are you getting on with this one&nbsp;@Anonymous? Are you still having sim issues?&nbsp;</P> Thu, 01 Mar 2018 16:32:05 GMT https://community.o2.co.uk/t5/Apple/Invalid-SIM/m-p/1111011#M159492 Martin-O2 2018-03-01T16:32:05Z