Region Changer on JAP VA0

[dragoncity]

Ok I try with Region Changer 1.5 > Backup Flash...but doesn't work...

I just put a SD...need HDD?

How do you want the dump?

[megavolt85]

read option in app Bios Flasher

[dragoncity]

why read bios...it's the flashrom...? o_O

So this is the bios I read with bios flasher :

backup_1998-11-27_01-03-27.bios

[megavolt85]

it's ver. 1.004 , this bios don't use region from flashrom for regional check

[dragoncity]

Ok so what is the solution for change in Europe?

[megavolt85]

replace BIOS

[dragoncity]

Hum... if I change bios with "freebios" like jc-bootROM-devkit-v1.031.bin ?

Or an other?

I want just change the region for Dreamshell..is it possible to have just the Bios Dreamshell and Europe?

[megavolt85]

(28.04.2018 00:52)dragoncity писал(а):  Hum... if I change bios with "freebios" like jc-bootROM-devkit-v1.031.bin ?

it's good

(28.04.2018 00:52)dragoncity писал(а):  I want just change the region for Dreamshell..is it possible to have just the Bios Dreamshell and Europe?

dreamshell don't use region

[dragoncity]

Ok for be sure.. I change the bios (remove SEGA) with freebios.

After the swirl is Blue ? o_O

Because I need the region Europe for best compatibility with dreamshell

[megavolt85]

after change BIOS chip you can change region via Region Changer

[dragoncity]

Hum.. but I need to keep this bios and piggy back dreamshell...?

or I can reflash this bios after region changer for put dreamshell?

[megavolt85]

what need? bios for boot from GD and bios with ds bootloader?

[dragoncity]

Ok I explain better.

If I change the bios and after use region changer I will have Europe,right?

So after I can reflash the bios in dreamshell and keep Europe?

Or I need to have 2 bios after?

[megavolt85]

create BIOS mod -> write jc-bootROM -> remove MPR-21068 (original BIOS)

[dragoncity]

In fact there is better we can directly with DS BIOS ^^

So I tested :

Change Bios with jc-bootROM > region changer > PERFECT and Blue Swirl !

After I tested

Change Bios with Dreamshell No-Gdrom > region changer > PERFECT and Blue Swirl !

And in Region Changer Europe > PAL > French

So Dreamshell Bios or Jc Bios I can change region !!

Thanks for your help

Ps: Why with the last DS we can't boot directly on ISO_LOADER..? o_O

[dragoncity]

In this photo


Need to connect pin 23 to IC302 Pin1 for VA0...

But I tested without,and work... so why?

[megavolt85]

for va0 use MX29F1610 is 5v chip

[dragoncity]

I use MX29LV160CTMC,and no problem without connect pin 23 to IC302 Pin1,so it's normal?

[megavolt85]

many people kill MX29LV160 on VA0 board, you were just lucky that the chip is still alive

[dragoncity]

I used 10 Mx29lv160 on Va0..no problem.. o_O

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I don't understand what is the problem exactly?