As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DESCENT, RECEIVED AN ECAM "BRAKE SYSTEM 1 FAULTY". EMERGENCY DECLARED. LANDING UNEVENTFUL. A SUCCESSFUL RESET WAS ACCOMPLISHED DURING FINAL APPROACH. REMOVED & REPLACED THE BRAKING AND STEERING CONTROL UNIT IAW AMM 32-42-34. OPS CHECKED GOOD.