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megavolt85
Developer
Posts: 1787

Re: How i boot retrodream using gdemu? wich iso i need? No SD.

Post#21 » Wed Nov 25, 2020 4:50 pm

BmNT wrote:
megavolt85 wrote:open flashrom lock, is test for locked sectors and flashrom device id and manufacture code

this is with no flashrom R512 to 12v wire enabled. So now what i do?


connect 12V and make sure the SYSTEM section is unlocked for writing (SYSTEM RW)

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Conatus
dark night
Posts: 52

Re: How i boot retrodream using gdemu? wich iso i need? No SD.

Post#22 » Wed Nov 25, 2020 7:07 pm

megavolt85 wrote:
BmNT wrote:
megavolt85 wrote:open flashrom lock, is test for locked sectors and flashrom device id and manufacture code

this is with no flashrom R512 to 12v wire enabled. So now what i do?


connect 12V and make sure the SYSTEM section is unlocked for writing (SYSTEM RW)

i have connected it but it says system RO...why?
maybe an error? it says va0 too but is a va1

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megavolt85
Developer
Posts: 1787

Re: How i boot retrodream using gdemu? wich iso i need? No SD.

Post#23 » Wed Nov 25, 2020 7:19 pm

BmNT wrote:i have connected it but it says system RO...why?
maybe an error? it says va0 too but is a va1


no it's not a mistake
the board revision data is taken from the flashrom, since your flashrom is erased, the program writes the default value

the SYSTEM section was not unlocked due to low of voltage, or the RESET pin is burnt out

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Conatus
dark night
Posts: 52

Re: How i boot retrodream using gdemu? wich iso i need? No SD.

Post#24 » Wed Nov 25, 2020 8:23 pm

i fixed it, problem solved, was r512 wire interrupted :|

Shinobi-Law
noob
Posts: 1

Re: delete

Post#25 » Fri Mar 26, 2021 5:55 am

Hi guys

I have a similar problem with my DC, I have a black swirl
I have upgraded a free bios in it, now more games are booting, Great
but now when I try to reflash the rom it doesn't work even if I put the 12v to R512.

do you know why?

Many Thanks

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