The only snes-emulator I know, which emulates the SGB perfectly, is bsnes/higan. But there are a few GB emulators, which can add the borders without emulating the SGB.

Hello everybody, here is my current recalbox. The b-button serves as wake-up/reset. Great piece of software!

Is there any way I can help with further information? logfiles etc?

The system completely do not detect the controller in the controllers settings.

Oh sorry: Yes! Current version beta 17 is running. I got a Kit I put in a SNES-Controller and a RetroUSB-adapter. Both work with my pc.

I’m currently using RetroUSB retrokit to use original SNES controllers and they work great, if you want to add that to the list.

Hello. I also wanted to use my RetroUSB-Controllers. But unfortunately they do not work with my recalbox. Any hints?

Unfortunately the Pro Pinball series also didn't work on my PSP with the Sony emulator. So I think there is not much one can do.

If you still see the square, it’s that your power supply is not good enough.

Just during the start up. Afterwards it is gone. With the weaker power supply it stayed the whole time. Is this still a problem? (Ordered a pi2-ready supply, but this one is from Samsung for my tablet. I would think it is also of a good quality.)

1. power supply with 5V 2A works, thanks. Is it normal that the square in the top right flashs during the start up nevertheless? 2) "snes9x_next" via recalbox.conf and not the menu did it too! Seems like this advice helps in 99% of any snes-issue. I am interested: Why is pocketsnes chosen as the default core?

"Hi, 1 is undervoltage, change the power supply, you need a high quality 5v 2A"

Oh... I hope I damaged nothing. My first test was on my old first pi. The pi2 was only used 1 hour (mostly the installation). Thanks for the fast answer. Like I said, I changed the core via the menu. I will try the recalbox.conf!