I've always thought that if a device is unlocked it means that it works with different carriers. If the device bootloader is unlocked, then does this mean the device will automatically work with different carriers? That is do unlocked device and unlocked bootloader mean the same thing?
All I know is that an unlocked bootloader is easier to root as commands can be sent to the device using the fastboot protocol used to boot it so it is not necessary to take advantage of an exploit on the device in order to root it.
I want to know if unlocked device and unlocked bootloader are synonymous.