Finally managed to do it, did same procedure as always - just this time it accepted my wish!:)

@paradadf Unfortunately I tried, but it doesn't work

My goal is to play online with Netplay. Looking at the Recalbox wiki, it is informed that NeoGeo, MAME and FBA systems do not need to hash to play, unlike the other supported systems, such as Mega Drive, SNES and etc ...

@MaMikee
Recalbox 6 is not compatible with Rpi A+.

Need to wait recalbox 6.1. See changelog

https://gitlab.com/recalbox/recalbox/blob/master/CHANGELOG.md
https://gitlab.com/recalbox/recalbox/blob/master/RELEASE-NOTES.md

@rustymg I think select alone make the main device switch between mouse and joystick, maybe only when virtual keyboard is up

@nostrik Of course without the BIOS you will have problems, but 3DO only works in Rpi3 if you overclock:
https://github.com/recalbox/recalbox-os/wiki/Board-Compatibility-(EN)

@mrayzarc
Maybe the german versions have copy-protection and that's why they do not work?
For some games, that have LibCrypt protection, you need the corresponding .sbi files
https://github.com/recalbox/recalbox-os/wiki/Definitive-PSX-Guide-(EN)
https://retropie.org.uk/forum/topic/2970/psx-games-with-lybcript

Connect you recalbox to your local network, then access the share partition from Window's file explorer, by entering \\recalbox in the path

@acris I did every explained in the first method, including reseting the controller bluetooth history. I event disconnect the ps4 just to be sure

@formulafox Have you tried the BETA version? It is more compatible with the video card drivers, in general:
https://forum.recalbox.com/topic/16576/february-2019-beta-version

@ristul Hello
Have you tried with : aspect_ratio_index = "23" ?

@kyuzumaki There's been a problem with the scrapers for some time. If I am not mistaken, there have been changes in the scraper site, not a problem of Recalbox itself, as far as I know. There are several other topics in the forum talking about this, you can try to see if any help:
https://forum.recalbox.com/tags/scraper

I use ARRM:
https://forum.recalbox.com/topic/11850/arrm-another-recalbox-roms-manager

@ottomanhlc this is not the right place to post bugs about the beta.

@erjeff access your recalbox through network

Or try to access different folder through winscp like /recalbox/share/roms

@bardem
Hi, if you boot with eMMC, you can not use CD card.
With system on eMMC, i recomman to put all ROMs on USB stick.