Your modded XBOX is outside what we can discuss here. Take it back to the people that modded it and have it put back to stock.
OK, i have an xbox 1 that has a been modded , i decided to change the hdd on the xbox. i had taken the hard drove out. and plugged it in again. first i powered it up while the cover was open, this was the first problem i faced.. the xbox started up, it showed nothing on the screen(with the green ring around the eject button). it turns off for a second and it turned back on, off on one more time then it flashes red and green. i didn't know what to do so i put everything back and fired up the xbox 1 last time. this time it comes up with the xbox start up and freezes in the middle of the start up video. know i have checked all the connections everything works but it keeps freezing on the start up. if there's any body out there with help if they can write
thanks, peace and love