Failure of the SIM card registration on mobile phone
You can see on your phone the message that your SIM card could not be registered, or that the SIM card number and the MSISDN do not match, you can use any part of the services. The Problem can have the following causes:
- You have not used your phone for over 1 year (no calls, SMS, no credits charge), it may happen that it is locked. Call your provider to learn whether the SIM card can be reactivated.
- You forget, a bill to pay or your contract is expired - the SIM card, then your service provider disabled.
- The SIM card is out of date and not compatible in the mobile phone.
- The SIM card is defective and must be replaced.

Registration of SIM-card failed (image: Pixabay)
Last hope: So you can solve the Problem
Sometimes mistakes rich SIM cards-small Tricks. The card has not been disabled by your provider, try the following:
- Turn off your cell phone.
- Remove the SIM card.
- DAB with a lint-free and dry cloth, carefully remove the SIM card and the contacts.
- Insert the SIM card and turn on your phone again.
- You still have the error message, is your phone or the SIM card is faulty.
- If you have the opportunity, test your SIM card in the phone of a friend, and you test another SIM in your phone. So you find out, what of both is defective.
In our next practice tip read, as you a new SIM card to register can.
