Aurora-R4, need Bios A05?

i bought my cousins old aurora r4 i think last week  after updateing all the drivers and updating windows 10 i started to get a bluescreen whenever some games would launch after looking up the problems i noticed that the problem was my bios but when i go and try to update them through dell it is saying to update i nneed to get a05 im currently running on a03 and cannot update to a11 any help or knowledge to get to a05 atleast so i can run the update from that to  a11 would be appreciated