[Q] [H] Wifi is greyed out and not turning on. topic

Hi! I purchased an m8 from someone else.

He also seems to have gotten the phone from someone as well.

He had a rom which I did not know, and I wiped it because he had personal data.

After coming home and trying to flash a new rom, the wifi is the only thing that is not working.

The wifi is not turning on. No problem with the router.

I tiried so many things. I got s-off by paying 25 dollars but still does not work

I got a boot.mg file but I don't think I have it for the rom that I am using.

I flashed so many roms but still the wifi is the only thing that is not working

The previous owner said the wifi was fine. What can do I?