Since we haven’t received your response of other KS-7215 M/B with wrong IC, hence, assuming there are no other wrong M/B happened except the 3 M/B you claimed.
To be more prudentially, please kindly return these four M/B back — SPAF75929 / SPAF75931 / SPAF86453 / SPAF86454—and we will ship 4pcs new M/B with your coming SEA shipment in 10TH/SEP.
Please kindly confirm if above mentioned is acceptable for you. Thanks.