What was found
AIRCRAFT WAS GROUNDED: ON GEAR RETRACTIONECAM MESSAGE L/G NOT UPLOCKED THAT ECAM WENT AWAY WITHIN A COUPLE SECONDS FOLLOWED BY ECAM MESSAGE L/G DOORS NOT CLOSEDFOLLOWED ECAM TO CYCLE GEAR. GEAR CYCLE OCCURRED NORMALLY AND ALL MESSAGES CLEARED. NO STATUS MESSAGES WHEEL PAGE SHOWED ALL GEAR AND DOORS UP LOCKED AND CLOSED. DECESION MADE TO DIVERT TO MIA AND SWITCH AIRCRAFT. NO EMERGENCLY DECLAIRED AND NOT OVERWEIGHT, LANDED WITHOUT INCIDENT. MAINTENANCE ACCOMPLISHED REMOVAL AND REPLACEMENT OF TARGET 25GA AND SECURED MOUNT BRACKET AT NLG.