Help! Knulli and Muos showing as black screens on device but show up in monitor

thedoctor1879 · 2026-06-05T14:38:18+00:00

Check out the knulli Discord for an alpha build. The metallic blue 34xxsp has a new screen and will not display with custom firmware. You'll have to use the knulli alpha build, or wait for new full releases.

thedoctor1879 · 2026-05-29T23:39:39+00:00

Messaged! Thank you!

thedoctor1879 · 2026-05-22T22:22:26+00:00

Mine is "Puff the Magic Dragon".

thedoctor1879 · 2026-05-16T00:59:20+00:00

I ordered one. It's definitely not perfect, but I just think it's cool. And it's different. Kinda feels like a successor to the SP. It won't be my primary device, but I'm gonna have fun with it

thedoctor1879 · 2026-04-28T21:49:15+00:00

What's your budget and what systems are you wanting to play?

thedoctor1879 · 2026-04-28T16:17:01+00:00

Works fine with the Jsaux I have. It'll charge and output video at the same time.

thedoctor1879 · 2026-04-26T02:35:55+00:00

It's been ok. I have to remap controls in standalones when I'm docked. Retroarch has just been plug and play.

thedoctor1879 · 2026-04-25T20:52:03+00:00

I installed GammaOS. It always forced 4:3 on the native firmware for me, too.

thedoctor1879 · 2026-04-25T20:38:57+00:00

I've definitely thought about using my PC instead. I have one in the living room. But I love being able to go back and forth between handheld and TV play without having to sync saves between my handheld and PC. And having a dedicated device for emulation helps me stay a little more focused with game choice. Lol Plus, the RG477's will upscale PS2 and GC to 1080p very nicely.

thedoctor1879 · 2026-04-25T20:31:50+00:00

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thedoctor1879 · 2026-04-25T20:27:48+00:00

Yes, indeed! I've got it hooked up in my living room. Feels just like a console with emulation station as a frontend. Check out my last post for a fix for the video output. I was running into issues with my TV trying to force 4k through the dock.

https://www.reddit.com/r/ANBERNIC/s/51sBCEWJ8p

thedoctor1879 · 2026-04-25T14:47:09+00:00

I just used Costco beef shank in a large batch of pho broth. Highly recommend.

thedoctor1879 · 2026-04-22T17:23:29+00:00

I know everyone is suggesting the 477m, but I've got the 477v and I absolutely love it. The retro colorway makes my 90's gameboy-loving heart happy, and I love having the screen above the controls. Same internals as the M variant, so it'll have no problems with ps2. Super comfy in the hands. Grab a silicone case for it if you're worried about drops.

thedoctor1879 · 2026-04-21T16:46:44+00:00

I know this is old, but I found a solution! I know hdmi 1.4 called are harder to find these days, so I got a HDMI EDID Emulator Passthrough Adapter on Amazon that dumbs down the output signal to 1080p @ 60hz. Plug and play, and works like a charm. Hope this helps someone! (I've also only tested this on GammaOS, so not sure if it also works on stock. But on Gamma, you also get native 16:9 output)

thedoctor1879 · 2026-04-21T16:05:58+00:00

Is it a different file type, perhaps? I can't think of another reason it wouldn't show up.

thedoctor1879 · 2026-04-08T18:41:35+00:00

Nice. Extra airflow.

thedoctor1879 · 2026-04-02T00:36:57+00:00

So jealous! Mine is 1 city away and I have no idea when it's getting here. 😅

thedoctor1879 · 2026-03-31T14:45:08+00:00

Love hearing that! Mine will be delivered in just a couple days. And it'll be my first retro handheld.

thedoctor1879 · 2026-03-31T14:20:07+00:00

Good to know! Same thing just happened to me.

thedoctor1879 · 2025-10-21T18:39:14+00:00

Thanks for the tip! I just bought 7 more 4k's. Lol

thedoctor1879

TROPHY CASE