The second bios is accessed via a dip switch. To be honest it does ask when flashing if you want to update both. Which to me is just daft as to me that just negates the point of it entirely
Thanks
Will need to read my user manual properly
Wasn't aware of a dip switch
Though mines ultra not master
Not sure if that will make a difference
I had to flash both of mine to the same
As had a problem where it wouldn't boot to the
Main bios just kept booting to the backup
Even though main bios wasn't corrupted or anything
But yeah I know what you mean the point of
A backup is it's a previous version to roll back to