Samsung Galaxy A55
It's not possible to start my phone
Solution 3 of 7: Your SIM is faulty
You can check if your SIM is faulty by inserting it in another phone.
Call customer services on 150 (from an EE phone) or 07953 966 250 (from other phones) to have a new SIM sent to you. You can also visit your nearest EE store to order a new SIM. Remember to bring valid picture ID.