Dell 3000 series replacing 3G only modem to one supporting 4G/LTE

Hi all,

I was wondering if anybody knew if it is straightforward process to replace a 3G-only modem (DW5515) to one that supports 4G/LTE (DW5818) on a Dell 3000 series gateway? Is it as simple as replacing the modem itself once I have ordered the new one? The product spec for a gateway that I have here suggests that there may be other parts to seamlessly switch to 4G apart from the modem module itself, i.e. labels etc. Is there anything else that would need replacing in order to complete the above, i.e. other boards/modules?

Many thanks in advance.

Marios