Retropie Arcade mame2003 in game tab menu no longer pops up

[tmak]

Re: lr-mame2003 menu issue - need location of input config

Hi I am new to retropie and have just finished setting up the way i like. I was using the controller config for the mame2003 games by hitting the tab button on my keyboard. Then after i had a few friends over playing games, the tab button no longer works and i don't know how to access this menu. This there any way through retroarch to reactivate it? I am not sure how it got disabled. Has anyone else had this issue?
I read the referenced link, and am not quite sure if it will solve my issue, also since i am new i do not find it very celar. Looking for a simple way to set it back to default.

Thanks,

[Brigane]

One of your friends might have screwed up the tab button configuration. I believe the config file you're looking for is located at "home/pi/RetroPie/roms/mame-libretro/mame2003/cfg/default.cfg".

[UDb23]

@tmak Happened to me also in the past. Solution in this post.