

Set up the LTE connection on your Surface | Surface Support.Use an eSIM to get a cellular data connection on your Windows 10 PC | Windows Support.Cellular settings in Windows 10 | Windows Support.

Add your Windows 10 PC to your mobile account to get online | Windows Support.To unblock it, you will need to contact your mobile operator for the PIN Unblocking Key (PUK) code. If you are using a SIM PIN for a cellular data connection and the incorrect PIN was entered three times, the SIM will be blocked and cannot be used until you unblock it.

After you have set up your SIM PIN, you will be prompted to type the SIM PIN when you try to connect. You can use a PIN for the SIM in your Windows 10 device to help prevent other people from using the cellular data connection when they are not authorized. However, these external cellular devices will often have their own settings instead of being able to use the built-in Settings > Network & Internet > Cellular settings in Windows 10. If your Windows 10 device doesn’t have a SIM card or eSIM, you can still connect to a cellular network by plugging in an external cellular device (also called a cellular modem or mobile broadband device). Some Windows 10 devices have a SIM card and/or eSIM in them that lets you connect to a cellular data network (aka: LTE or Broadband), so you can get online in more places by using a cellular signal. How to Unblock SIM PIN for Cellular Data Network Connection in Windows 10
