Smartphone Questions? Ask A Smartphone Technician for Answers
Hi and Welcome. My Name is ***** ***** I look forward to assisting you today with your question.
If it is frozen, then you have two options in here. Either you have to let the battery drain, so it will turn off the system and reset itself or you have to disconnect the battery by taking the back cover if you would like to fix it immediately. This will also reset it. There is no other way to reset it without home button.
Which model of iPhone is this ? Let me know and I will send you instructions to remove the battery.