Erase data from iPhone XR with broken screen and Find My iPhone turned off
I have to send in my broken iPhone XR. The screen is broken and I cannot click "Erase all info and data" in the settings. I looked online and was told I can erase the iPhone through iCloud. Unfortunately I have to have the Find My iPhone turned on, which I had turned off a few days ago and the screen is broken so I cannot turn it back on. How can I reset and erase all the info on my iPhone?
iPhone XR