As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIVERTED DUE TO REPORT OF "LIGHT" SMOKE/MIST IN CABIN AND SULFUR/MATCH/BURNING ODOR NEAR SEATS 24-26 & 36-38. MIST/ ODOR DISIPATED BEFORE LANDING. NO MASKS DONNED OR DEPLOYED. NO EMERGENCY DECLARED. INSPECTED SEAT AREAS, CEILING PANELS, LAVS, AND RAN IFE EQUIPMENT, ENGINES AND PACKS. NO ODOR DETECTED. TEST FLIGHT ACCOMPLISHED AND ALL SYS CHECKS OK.