I do not believe it, that it was blocked by imei, if it lets you access the internet but not calls could be a possibility.
Try the card in another terminal and another card in your sony to rule out card errors.
If I gave you an error, the card with a duplicate would solve it, but if it happens with any card and it is from the terminal, you will have to contact who will sell it to you so that you can use the guarantee and send it to repair.
a greeting