I have a Verizon jetpack that I bought less than a year ago and only used for 3 months. I now have no use for it. I would like to sell it privately. However, I've never sold anything like this before (cell phone, hotspot, etc.). What do I need to do to safely sell it? It is listed inactive in my Verizon account. Do I need to remove the SIM card or do anything else to it before selling it to someone else? Thanks!