Q: DFU Broken Home Button iPhone 5C

     I got my old iPhone 5c out today and got it charged up and tried to use it, its about a year old and I have absolutely no clue what my password is.  I tried multiple and locked myself out for 15 minutes.  I tried DFUing and realized my home button broke (which is why i got my new phone) about a year ago.  Also, I have a new computer, so, the iPhone isn't "trusted" with this computer.  I need to find a way to erase everything on it and use it as a new phone, or as a backup. (I break a lot of phones).  So, quick run down: iPhone 5c, Broken Home Button, needs erased(or restored i don't know), computer cant be trusted because the iPhone is locked.  Thank you!