Unlock bootloader

[HyperGamer15]

Hello. I have an I.TIM branded Atrix MB860 and I want to unlock The bootloader to install a custom recovery and a custom ROM.
How can I do?

Thanks in advance

 

[lokr]

If U want unlock bootloader search for file intl-fix-try1.sbf download it and flash with rsd lite, now boot phone in fasboot mode and type ''fastboot oem unlock'', cmd should display long numer which is device ID number) now type ''fastboot oem unlock xxxxx'' (xxxxx is ID of device) and after few seconds ''fastboot reboot'' now phone should reboot and at startup display ''Bootloader unlocked'' , after this flash cwm or other recovery and U can flash some custom rom.

Here is whole thread:
[HOWTO MAY16]UNLOCK BOOTLOADER, FLASH RECOVERY, INSTALL ROM Atrix 4G Bell/int'l + ATT