[ahmada]

1. How do I unlock the bootloader?
2. Does it have to be rooted before unlocking the bootloader?
3. How do I know if my bootloader is already unlocked? Is that a possibility?
4. I need to find a rom that supports arabic.

[JohnnyUtah]

Try this: [GUIDE] Root & Unlock the Bootloader of Your Atrix (AT&T) - xda-developers