PRR (protected Range Registers) set is a bit more tough to get past, if it can be done (Sometimes, by PRO's, which I am not at that edit). Is that with your stock BIOS, attempting to reflash the -bios region only?
If yes, OK, if not and it's modified BIOS, see if you get the same when using stock BIOS. In mean time I will look in BIOS and see if I can undue the PRR lock, if not you will have to use stock BIOS until you can get a flash programmer and test clip cable.

Sorry, forgot to add, no, new BIOS will have same locks as old BIOS.

Your the best thanks for all your help!

You can try flashing with AFU/AFUWin/AFUWinGUI, these are the default flags used in the stock package >> /dc:0 /p /n /mer /fdr /reboot /ssid:084DA,084DB

I would use only these >> /p /reboot
If using the GUI version, uncheck everything except "Program main block"

However, I now see this BIOS is RSA Signed like you mentioned, so nothing may work Even with programmer (Sorry, I forgot you had already when I mentioned that above... Or, has it not arrived yet).
It may be OK, once you dump with programmer and we edit, but we wont be able to tell that until you can dump and we test.

I'll still check on the PRR lock for you now though, but I think it might possibly brick on you if it does flash in? Sometimes clear CMOS will fix that, if not you will have to try recovery methods, or wait until programmer arrives.

*Edit I see it also has "BIOSGuard" feature, so probably no matter what, nothing is going to work even with programmer

Damn programmer gets here next week seller is slow to ship. So even with programmer it might not work? PRR if you find that would that make it so I could flash? If so is there tutorial on PRR I have nothing but time on my hands to search.

Edit
Oh wow so biosguard will stop anything we try to do and theres no way around biosguard?

Yes, sorry, even with programmer it may not work due to BIOSGuard. I mean even if we get around RSA stuff with programmer and got lucky on that front, it looks like BIOSGuard checks some kind of signature too but what I do not know. HP is becoming more of a pain for BIOS modifications each day.
The new version of this I've dealt with recently is now called HP SureStart, which re-writes the BIOS on reboot no matter what you do, from some other non-BIOS chip on the board.

I found the PRR lock in your BIOS region dump in 4 modules at 7 locations, I can remove which should let you go past that 301 PRR error you just posted in FPT, but then you may end up with a brick until programmer arrives (I can't be sure of outcome due to never tested what happens with RSA signed BIOS flashed in)
If you want to try, and want me to go ahead and remove this lock, let me know.

Ok thanks for your time, ill update the thread when the programmer arrives and we can try again.

Sounds good, hopefully we can have some luck with programmer! Have you googled around your board model and "Mod BIOS" and found anyone flashing/programming with success?

Couldn't find anything the other day, seems im the only one interested,

Maybe no one tried yet? Hopefully we can figure something out when your programmer arrives, if not, apologies in advance for getting your hopes up

No worries man, just wish there was a site where you could pay someone to do it lol.

Either way youve helped quite a bit thanks for all the support.

Sometimes someone might charge you at BIOS-mods forum, not always but I mean I've seen modders there say they will mod BIOS for a fee.
You can check there and see if anyone modified similar BIOS? There's some real smart pro's there, so maybe someone can help and not charge you at same time, but that is where I learned about RSA BIOS warnings, so maybe they can't help either and no one can except HP

Curious, I have found a TPMFW Upgrade TS Example, and Hp scripts, apps to go along with it. Would that be of any help to this? Furthermore I have also located IntelAuthenticate v3.6.0.192 package and a few other versions that provide all the tools released within IntelAuthenticate. Would this perhaps be of use to me. I have numerous other programs, but these two seemed like they might help me obtain the results Im after.

Oh and an unreleased bios package for my series of laptops.

I also have a 15-dc and it drive me nuts i cannot do much with it because of its limited bios config. You were mentioning a unrealeased bios package. Where did you find that? The latest on their website is from march this year. Thanks

Im also interested in this