Original BIOS for Sapphire Nitro (Non-plus) RX 470 4GB Samsung Memory

[jmigdlc99]

I'm planning to hedge value and sell some of my RX470s to gamers, individually. They usually ask for the stock bios, but my backups have been corrupted.

I've tried to search online but the ones at techpowerup or anoraks aren't compatible because the 4GB ones are Nitro+ while mine are Non+ (i keep getting BSOD when i try to boot/install drivers with other BIOSES).
Does anybody still have the original BIOS for a Sapphire Nitro (Non-plus) RX 470 4GB Samsung Memory? I would greatly appreciate a merit-worthy post.