Ok. So I have a RAZR M, locked BL but rooted and carrier unlocked, a Samsung Galaxy Tablet 2 (LTE data ONLY), and a Nexus 5, unlocked BL and carrier unlocked. I'm not sure on which Verizon LTE 4G capable devices this works for, but it works on these 3 I just mentioned. You can put a LTE sim card in them and they will run on Verizon's LTE 4G network while on a PREPAID Verizon account. Verizon prepaid does NOT offer LTE 4G service on their prepaid network, so I assume that the devices being unlocked and previously on a postpaid account allows them to continue on the postpaid system while on a prepaid account. What's the big deal you ask? Well, Verizon prepaid offers 1G of data ONLY for $20/month. I ran my Tablet through their account setup and was surprised to see it connect at 4G speeds on LTE. Then I put the sim into my RAZR M which has a locked BL but is rooted and has the NV edit to the radio which allows GSM capabilities. But I don't believe that is relevant. And much to my amazement, not only did I get LTE data, but I can make calls!!! Texting does not work, but with data and Google Voice it does! So for $20/month I have UNLIMITED CALLS (so far), UNLIMITED TEXTS (limited only by data limits....negligable) and 1G of LTE data on the Verizon network!!!!! And of course there's other plans if I need more data.I have been waiting to get my money back from Verizon for years, now I can!!!! Unfortunately I live where I must have Verizon. But where else can you get UNLIMITED+UNLIMITED+1G of LTE data for $20!!?!?!?!?!?!??!?!?!!?!?!?!?!?