I need help ASAP to unlock my samsung s6 with a european sim card I bough a samsung

I need help ASAP to unlock my samsung s6 with a european sim card

I bough a samsung s6 in france it has a european block on it i am currently in israel and i cannot find any network im under a lollip 5.1 rooter all the places i went to to fix it told me i need a flasher im able to do it but all i am missing is thr flasher and the program model c s6 sm-g920fzdadbt
I can assure u i bough this phone legit if any one has a solution i will even send u the proof