Repair imei OT-6045

I’m trying to repair imei on this Alcatel OT-6045.
When i try to root it says always : fail after send boot.img.
i tried with custom recovery same problem.

if i try to unlock bootloader it say: unknown command.

Any help?

software alcatel by log don’t recognize phone i think i must enable diag on usb but without root i can’t do