Bootloop after OTA update

Hi everyone.

After installing an OTA update my Nexus 5X entered in logo bootloop. The USB debugging is off and now I cant boot the phone to enable it.
He is still with OEM LOCK. I've tried the following steps:

- fastboot oem unlock -> says the oem unlock is not allowed
- fastboot flash ... -> device is locked cannot flash images
- OTA rescue http://ift.tt/1squLAH -> success install, still bootloop

I can enter in bootloader normally, but any fastboot modify operation (format, flash, erase) i got that fkin message "device is locked"

Any idea how can i solve it? It may just be enabling USB debugging without boot up the phone or recovery to factory image. I have no data on it, I can delete/wipe anything.

FASTBOOT MODE
PRODUCT_NAME - bullhead
VARIANT - bullhead LGH790 16GB
HW VERSION - rev_1.0
BOOTLOADER VERSION - BHZ11b
BASEBAND VERSION - M8994F-2.6.33.2.06
CARRIER INFO - N/A
SERIAL NUMBER - xxxxxxxxxxxxxxxxxxxxxxx
SIGNING - production
SECURE BOOT - enabled
DEVICE STATE - locked

RECOVERY MODE
google/bullhead/bullhead
6.0/MDA89E/2296692
user/release-keys

Thanks a lot, sorry poor english, I´m brazilian.

from xda-developers http://ift.tt/20UKkeS
via IFTTT