Region Change on Pal consoles with bios mod ?

[Elbarto0]

hey

i have a pal konsol dreamcast ^^ and i installed a sd mod works great. and soldered a bios mod works ok but not right i think. when i start the console in the bios mod mode without the dreamshell cd the window is in the middel and some crap lines and not correct on screan. when i linked the r422 point then i have a correct windows .

i linket the point r512 and 12v to chance the region it dont work

i start the dc with the dreamshell cd i can chance the region i start the dc without the dreamshell cd (bios mode ) the region chance dont have ticks and when i tick some on, press write nothing happens. why ??

is the chip not soldering correct ?.

hope you can help me thanks allot.