FLASH WITH COMBINATION FILE, THEN FLASH WITH( BL )AND (AP )ONLY..UNCHECK META DATA, USER DATA AND VENDOR…FLASH IT…THEN 3RD STEP FLASH IT AGAIN WITH AP,BL,CP,CSC……DONE YOU UNLOCK FRP................................ .https://kingsfirmware.com/samsung-sm-j260y-factory-file-samsung-frp-bypass/