Ps1 Bios Upload İs Possible ?

General information to do with the PlayStation 1 Hardware. Including modchips, pinouts, rare or obscure development equipment, etc.
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Dark Frost
Curious PSXDEV User
Curious PSXDEV User
Posts: 25
Joined: May 31st, 2016, 12:23 am
PlayStation Model: 4 x 9002

Ps1 Bios Upload İs Possible ?

Post by Dark Frost » June 21st, 2016, 3:17 pm

Ps1 Bios Upload İs Possible ?
How Can ı Upload Bios in My playstation
any Upload Bios software Is there ?
I'm Newbie For Psx Developer :)
Test And Develop Console: 4 x SCPH-9002 + 1x SCPH-1002 + 2 x SCPH-102 + Psx Orginal Pal LCD Screen + 3x SCPH-1020 Memory Card + 2x SCPH-102 Memory Card + 1x Cheap Memory Card :)

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Shadow
Admin / PSXDEV
Admin / PSXDEV
Posts: 2431
Joined: December 31st, 2012, 5:37 pm
PlayStation Model: H2000/5502

Re: Ps1 Bios Upload İs Possible ?

Post by Shadow » June 21st, 2016, 3:35 pm

What on earth are you talking about? :shrug

You can't write to mask ROM. Period. If you want a re-flashable PSX BIOS, you'll have to desolder the existing BIOS and find a suitable IC which is an E/EPROM. I don't see the point though.

More information here.
Development Console: SCPH-5502 with 8MB RAM, MM3 Modchip, PAL 60 Colour Modification (for NTSC), PSIO Switch Board, DB-9 breakout headers for both RGB and Serial output and an Xplorer with CAETLA 0.34.

PlayStation Development PC: Windows 98 SE, Pentium 3 at 400MHz, 128MB SDRAM, DTL-H2000, DTL-H2010, DTL-H201A, DTL-S2020 (with 4GB SCSI-2 HDD), 21" Sony G420, CD-R burner, 3.25" and 5.25" Floppy Diskette Drives, ZIP 100 Diskette Drive and an IBM Model M keyboard.

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Greg
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Posts: 101
Joined: September 9th, 2013, 1:27 am
PlayStation Model: SCPH-7501
Location: Port-au-Prince, HAITI

Re: Ps1 Bios Upload İs Possible ?

Post by Greg » June 21st, 2016, 4:35 pm

1 x SCPH-7501, 2 x SCPH-7001, 2 x SCPH-5501
1 x Pro Action Replay with "Dual Rom Mod", ROM 1: Caetla, ROM 2: UNIROM
1 x Xplorer V2 with Caetla
1 x GameShark V2.1
1 x GameShark Pro V3.0
1 x CommLinkUSB
1 x XLinkUSB

Dark Frost
Curious PSXDEV User
Curious PSXDEV User
Posts: 25
Joined: May 31st, 2016, 12:23 am
PlayStation Model: 4 x 9002

Re: Ps1 Bios Upload İs Possible ?

Post by Dark Frost » June 22nd, 2016, 1:52 am

Thank You So Much For Helping
I'm Newbie For Psx Developer :)
Test And Develop Console: 4 x SCPH-9002 + 1x SCPH-1002 + 2 x SCPH-102 + Psx Orginal Pal LCD Screen + 3x SCPH-1020 Memory Card + 2x SCPH-102 Memory Card + 1x Cheap Memory Card :)

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