Remote Management ex-employer iPhone to personal use

Hi, I just left my previous job that left me with an iPhone X. They deactivated my number and I would like to upgrade my personal iPhone 7 to the iPhone X. I did a factor reset to wipe all my previous company's data and am trying to backup from my iPhone 7, however when I get to the "Hello" welcome screen, the next screens show that my iPhone X is still being "remotely managed" by my previous company. I can't login because my employee email has been deactivated as well. How do I get past this?

I tried to do a factory reset again via iTunes, but iTunes is saying I need to turn off Find My location features, however, I can't even do that because I can't get past the Hello welcome screen because of reasons listed above. Any advice? Thanks!