Instalamos android tools
dnf search android-tools
android-tools.x86_64 : Android platform tools(adb, fastboot)
dnf install android tools
si lo detecta veremos el numero de serie del equipo
[root@localhost ~]# fastboot devices
ZY222V6C98 fastboot
obtenemos los datos para generar el desbloqueo
[root@localhost ~]# fastboot oem get_unlock_data
...
(bootloader) 3A25530807348765#5A593232325636
(bootloader) 433938004D6F746F47332D0000#4A60
(bootloader) 441B387A28B3A5DB628189027896594
(bootloader) 3EBDD#B78A590400000000000000000
(bootloader) 0000000
OKAY [ 0.270s]
finished. total time: 0.270s
entramos en la pagina de motorola para generar la llave
https://motorola-global-portal.custhelp.com/app/standalone/bootloader/unlock-your-device-a
pegamos toda la cadena del unlock data
3A25530807348765#5A593232325636433938004D6F746F47332D0000#4A60441B387A28B3A5DB6281890278965943EBDD#B78A5904000000000000000000000000
nos llega nuestra key
O6CYMJHVKAW3JYU7WQMP
en opciones de desarrollo habilitamos la opcion "Desbloqueo OEM"
le mandamos la llave
[root@localhost ~]# fastboot oem unlock UNIQUE_KEY O6CYMJHVKAW3JYU7WQMP
...
(bootloader) Unlock code = UNIQUE_KEY
(bootloader) Password incorrect!
FAILED (remote failure)
finished. total time: 0.562s
tristeza :(
tarado...
[root@localhost ~]# fastboot oem unlock O6CYMJHVKAW3JYU7WQMP
...
(bootloader) Unlock code = O6CYMJHVKAW3JYU7WQMP
(bootloader) Phone is unlocked successfully!
OKAY [ 1.957s]
finished. total time: 1.957s
listo