Need to Downgrade Alienware M16 R1 1.15 bios to 1.14

Hello, Alienware write protected uefi variables so setup_var isnt working anymore with exit code write_protected error in AmdSetupRPL varstore. I need to return 1.14 bios which lets you change uefi variables. BTW downgrade lock is present(i think dell uses another technique) while FAR firmware rollback is not enabled, still no downgrade possible. donating $50 for the helper. Just tell me what you need(files/information) and i will add them.