The Taca crash about 10 years ago at TGU report said that the captain used manual braking about 500 meters from the end of then runway 01 because autobrakes were not functioning. He ended up in the ditch in a new A310 right before the cliff backwards between the runway and taxiway. I taxied by it many times while they were repairing it in our 757. We use autobrakes but once landed I go manual to make sure on that critical airport we have absolute braking control. I can not imagine flying an airliner that by a glitch in the system could take away the brakes so am sure airbus doesn't either.