X570 phantom gaming-ITX/TB3 5xxxG Support

HI, Xaltar, a couple of things. First thank you for somewhat correcting my post with this Booting and Update problem. Then, how can one update or ammend ones posts? My post on this matter has some small errors and I wish to erase it. Also, how do we jump quickly to our own posts? i always have to myke a search or just book mark the page.
Thank you for your help.
Al-kibir

I recently put together a new build using the X570 Phantom Gaming ITX motherboard paired with a Ryzen 5 5600G CPU, which is supposed to be supported. However, the system turns on, everything powers up, but no post. Then after about 30 seconds it resets. There is apparently no flash bios functionality with this board.

The rest of the system is two 8 g sticks of t-force dram; corsair AIO, Corsair 1t m.2, a Samsung 512g SATA, and a Corsair SF600 psu.

What do I need to do to get this machine to post?

Hi, I recently purchased the x570 itx/bt3 motherboard and a 5700g APU, I also have a 3200G APU currently installed to update the BIOS, I've followed the instructions to boot the EFI system and navigate to my flash dive. Running the biosupdate.nsh script produces the error that /ATR is an invalid argument, making that /ATR:D or ATR:U gets past that error but then produces "ae - Error: BIOS doesn't support OEMCMD function.

My last attempted biosupdate.nsh follows:
echo -off
B16
if %lasterror% == 0 then
echo Update BIOS for Picasso and Pinnacle.
AfuEfix64 X57TB3_3.50 /p /b /n /k /l /x /ATR:U /CMD:{TOP16M} /RLC:F
AfuEfix64 X57TB3_3.50 /p /b /n /k /l /x /CMD:{BOTTOM16M} /RLC:F
else
echo Please use Instant Flash to update BIOS.
endif

Any help getting this motherboard updated to support the 5700g would be appreciated.