I've got a EU residence permit that might become invalid soon for various reasons, however, it doesn't expire for another 6 months.

I need to re-enter EU, so I might use it at some point. It doesn't have a barcode, but it has those "<<<33<<<3<<<" symbols like a passport, and I believe it has a RFID chip.

My question is do they scan them at the border entrance, or just glance at it to see if it has expired or not?

Thanks.