Hi, I'm Randy. Welcome to JustAnswer. I'm reviewing your question now, and will post back with your reply ASAP.
Do you have a computer with iTunes software installed?
okay, the iPhones firmware has corrupted and the only way to restore the iPhone and get it working again will be to use iTunes on a computer.
Do you have a computer that we can install itunes on.
do you want me to do the install for you with remote support or would you like me to give you the link and instructions.