You will need to go to your local radio-shack and purchase a 7' telescopic antenna, 6' of red #22awg wire, and a roll of electrical tape.
Place the antenna on the back of the phone, wrap the wire completely around the antenna and phone--then use electrical tape to hold in place.
Once you fully extend the antenna you will receive 4g service and if you don't it's because your area doesn't have 4g coverage yet.
But seriously what you are asking is not possible.