Certificate file SM g530h

Hello need some SM- G530H certificate file or SM- G530BT the files that got are not working in my parents someone has another file to share with me ?

files that have tried most did not work

000000015856784_0504.cert
355677060467699_0504.cert
357213061402614_0504.cert
357214061402612_0504.cert

just thought these more are blacklisted in my parents have some to share with me ?