Sometimes Dell reuses model numbers, making it difficult to know how old a model is. However, from what I can see your model is five years old. So, I'm guessing that you bought it used. In that model, WWAN card (that's what the SIM card connects to, to provide WWAN/cellular service) was optional. Probably your laptop was not ordered with the WWAN option, so it doesn't have antenna or WWAN card. If the laptop already has the WWAN antenna installed, then it's possible to install a WWAN card and get it functional. If the antenna is not present, then the job would not be trivial. To install the WWAN antenna would require disassembling the display which, given that some parts are glued together and some are fragile, comes with a high risk of damage. Alternatively, you could replace the display with one containing the WWAN antenna. For internal cards, this Dell page has information:[URL] You can get external WWAN adapters that connect to a USB port. That would be a simpler solution than trying to install internal antenna and WWAN card.
Hi  I just received my laptop and installed windows 11 on it and it seems that everything is ok I insert my sim card but the laptop was not detected I need to know why and how can I solve this issue. Thanks
Latitude 5480 Sim Card not detection