Iphone SE: how to fix the no SIM message?

Alvaro F.

During the last week, I've noticed I've lost signal as I get a message saying No SIM. It comes back after power cycling the phone, but in the meantime I'm missing calls, texts and IMs.
Any idea what could be the reason? I read other questions mentioning this could be a faulty SIM, but if it were the case, why would power cycling work? Should I be requesting a new SIM card from Fizz?

Whizz

Hello Alvaro Fernandez,
In order to be able to help you, please contact us via Facebook Messenger or Live Chat. On the following link you will find information regarding how you can do that: https://fizz.ca/en/contact-us .
Thank you very much for your understanding.
Have a wonderful day!
-Bogdan