Retrostone 2 wifi and psx memory card

[Krempo]

When I try to connect to wifi, it says system policy prevents modification of network settings for all users. Then asks me for password for root.

Also,
How do I fix the psx memory card issue?

[SpeirsR]

possible fix:
edit /opt/retropie/configs/all/retroarch-core-options.cfg and remove all lines starting with pcsx_rearmed
this will reset PSX configuration

[alexkidd]

try editing /opt/retropie/configs/all/retroarch-core-options.cfg, and remove all pcsx_rearmed parameters

[timespawn]

I fixed mine by putting the bios file in the bios directory, the game would load without the bios file, but wouldnt save without it!
/home/pi/RetroPie/BIOS/SCPH1001.BIN
is the file name and folder!

hope this helps someone else!