Question nvflash not working, "Falcon reset control is disallowed!" ?

[ConnorCon]

I've been trying to update my gpu bios recently and going through the steps I've seen online; downloading nvflash, downloading the new bios, running it in command prompt with 'nvflash64 -6 newbios.rom'. but I end up with the error "Falcon reset control is disallowed!" the card is playing up at the moment and won't install drivers properly so maybe that's it but idk.
what do?

gpu: nvidia gtx 770
mobo: gigabyte b550m s2h
cpu: amd ryzen 5 3600 6 core
16gb ram

 

[kerberos_20]

it should be telling PLM error code

 

[ConnorCon]

it should be telling PLM error code

idk what that means lol, 'ERROR: Falcon reset control is disallowed!' is all it says after pressing y

 

[kerberos_20]

it usualy means that gpu adapter was not detected or bios eeprom failure
ever considered that your card is dead?

 

[ConnorCon]

it usualy means that gpu adapter was not detected
ever considered that your card is dead?

yee it's looking like it's on it's way out at this point, hence trying the vbios update. any idea what's causing it to not be detected properly by nvflash? idk if it not being able to install drivers properly is what's causing it to not be detected but windows and gpuz are able to detect it and it still displays (although doesn't do too much else)
am probably gonna replace it when I can but just tryna get as much life out of it as I can rn