|You want to flash a verizon phone to net 10? Verizon is a CDMA network. I'm not sure about net 10 but if it's GSM you can't do the flash.|
If you can do the flash then you'll need the flashing software and the proprietary cable to connect the phone to your computer (a bluetooth setup might work for that too). Some flashing software is available on ebay but often it won't do a complete flash which usually means the multimedia stuff on the flashed phone won't work.
Or you can take it to a cell phone store and pay them more than the phone is worth to have them flash it.