Need Help with rooting MOTO G4

[Jaarit Laal]

Currently my device doesn't support USB debugging, file transfer etc. for some weird reason. Hence, decided to reset it to factory settings and then root it. It is updated to the latest version (Nougat). Kindly help me by laying out detailed steps to root my phone and install custom roms (preferable OREO) so IMEI and other functionalities won't be lost. Also, kindly guide me how to take proper precaution like backing up stock rom and other settings, in case something goes wrong and I need to unbrick the device. TIA

 

[Jaarit Laal]

Sadly, still can not access any menu from notification area, and hence no USB debugging