As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AVIONICS SMOKE ECAM WARNING ON TAKEOFF. REJECTED AND PERFORMED ECAM AND AVIONICS SMOKE PROCEDURES, NO SNIFFER SMOKE DETECTED, DID RTO CHECKLIST AND RETURNED TO GATE AVIONICS SMOKE WARNING CAME ON 2 MORE TIMES BEFORE BLOCKING IN. REMOVED AND REPLACED E/E SMOKE DETECTOR IAW AMM. OPS CHECK REF, ALL NORMAL.