The Photon is a WiMax only phone. It is impossible for any Sprint WiMax device ever built to run on Verizon LTE. Verizon LTE runs on 700MHz, which no Sprint WiMax device can do.
If you don't have WiMax coverage now, you may want to return your WiMax device now and wait until 4/15 for a LTE device. LTE is being deployed in the Boston market (including Worcester), even as I type this.
Robert, S4GRU.com