VA0 Bad flash

[a500plus]

Hello All,

I have a JPN VA0
Games like Sonic adventure do not work, the date will not stay (it has a new tested battery).
DC check disk fails instantly to a red screen. I do not have black swirl, but I understand I have a very early DC where i think region is kept on bios.

The first guide i found was dragoncity using retro dream. No version of retro dream will boot.
V2 hangs on splash => checking harddrive
v3 hangs on splash
I tried all versions of Dreamshell, they all hang on "G1-ata" during initial load, until i go all the way back to 4rc1 = which loads fine. 4 beta also loads ok. This DC has never been modded. I have an SD adapter.

After much testing I strongly think the flash is corrupt. I read a lot here and other forums & soldered 12v => R512 and "flashrom_tool.bin" I found on here reports that it is RW

I have tried restoring backup from VMU -> no change via region changer 1.5
I have tried making LUA script on dreamshell 4RC1
os.execute("flashrom -write 0 131072 /sd/DS/shared/flash/dcjp_ntsc.bin")
flashrom errors that it can not open 131072

Im running out of ideas.

Thanks

[Elgor4uk]

(28.09.2024 00:14)a500plus писал(а):  Hello All,

I have a JPN VA0
Games like Sonic adventure do not work, the date will not stay (it has a new tested battery).
DC check disk fails instantly to a red screen. I do not have black swirl, but I understand I have a very early DC where i think region is kept on bios.

The first guide i found was dragoncity using retro dream. No version of retro dream will boot.
V2 hangs on splash => checking harddrive
v3 hangs on splash
I tried all versions of Dreamshell, they all hang on "G1-ata" during initial load, until i go all the way back to 4rc1 = which loads fine. 4 beta also loads ok. This DC has never been modded. I have an SD adapter.

After much testing I strongly think the flash is corrupt. I read a lot here and other forums & soldered 12v => R512 and "flashrom_tool.bin" I found on here reports that it is RW

I have tried restoring backup from VMU -> no change via region changer 1.5
I have tried making LUA script on dreamshell 4RC1
os.execute("flashrom -write 0 131072 /sd/DS/shared/flash/dcjp_ntsc.bin")
flashrom errors that it can not open 131072

Im running out of ideas.

Thanks

1. Retrodream 3.2 on VA0 Japan only works with GDrom installed.
2. Retrodream 3.1 works without GDrom, but many games freeze at startup.
3. Maybe your problem is related to the SD adapter and installing the IDE mod will help solve the problem.

[a500plus]

Thanks for your help.

For info I have a working gd ROM drive. Its installed. Its a very unmodded Dreamcast. I have tried the full cd version of dreamshell and it hangs in the same place .

[SWAT]

(28.09.2024 00:14)a500plus писал(а):  Hello All,

I have a JPN VA0
Games like Sonic adventure do not work, the date will not stay (it has a new tested battery).
DC check disk fails instantly to a red screen. I do not have black swirl, but I understand I have a very early DC where i think region is kept on bios.

The first guide i found was dragoncity using retro dream. No version of retro dream will boot.
V2 hangs on splash => checking harddrive
v3 hangs on splash
I tried all versions of Dreamshell, they all hang on "G1-ata" during initial load, until i go all the way back to 4rc1 = which loads fine. 4 beta also loads ok. This DC has never been modded. I have an SD adapter.

After much testing I strongly think the flash is corrupt. I read a lot here and other forums & soldered 12v => R512 and "flashrom_tool.bin" I found on here reports that it is RW

I have tried restoring backup from VMU -> no change via region changer 1.5
I have tried making LUA script on dreamshell 4RC1
os.execute("flashrom -write 0 131072 /sd/DS/shared/flash/dcjp_ntsc.bin")
flashrom errors that it can not open 131072

Im running out of ideas.

Thanks

For write setting size doesn't needed:

PHP код:

os.execute("flashrom -write 0 /sd/DS/shared/flash/dcjp_ntsc.bin") 


[a500plus]

(30.09.2024 14:13)SWAT писал(а):  

(28.09.2024 00:14)a500plus писал(а):  Hello All,

I have a JPN VA0
Games like Sonic adventure do not work, the date will not stay (it has a new tested battery).
DC check disk fails instantly to a red screen. I do not have black swirl, but I understand I have a very early DC where i think region is kept on bios.

The first guide i found was dragoncity using retro dream. No version of retro dream will boot.
V2 hangs on splash => checking harddrive
v3 hangs on splash
I tried all versions of Dreamshell, they all hang on "G1-ata" during initial load, until i go all the way back to 4rc1 = which loads fine. 4 beta also loads ok. This DC has never been modded. I have an SD adapter.

After much testing I strongly think the flash is corrupt. I read a lot here and other forums & soldered 12v => R512 and "flashrom_tool.bin" I found on here reports that it is RW

I have tried restoring backup from VMU -> no change via region changer 1.5
I have tried making LUA script on dreamshell 4RC1
os.execute("flashrom -write 0 131072 /sd/DS/shared/flash/dcjp_ntsc.bin")
flashrom errors that it can not open 131072

Im running out of ideas.

Thanks

For write setting size doesn't needed:

PHP код:

os.execute("flashrom -write 0 /sd/DS/shared/flash/dcjp_ntsc.bin") 


Thanks. When I do this. There's no error message , a slight delay and then nothing in console . The flash is no different as far as I can see.