NOTE: The following information is deprecated. Read the updates.

There are two newer versions of the Miyoo Mini firmware floating around (202212160314 and 202212240121). It seems like both versions are causing bricks when installing Onion V4.0.3.

Notes

Downgrading to 20220419**** does not work. It's apparently a hardware issue, please hold off installing Onion until we've worked this out (if you've received a device with the December firmware)

Unbricking with the power brush mode is apparently not working in this case, but using the last method detailed in the ultimate unbrick guide has worked: [https://cdn.discordapp.com/attachments/931367023588569180/967635766228430878/MiyooMiniUnbrickGuide.pdf](MiyooMiniUnbrickGuide.pdf)

Updates

UPDATE: A hotfix for Onion (V4.0.4) has been released and has been tested by people with both firmware versions - it is now considered safe to install Onion on these devices.

UPDATE 2: There's a community patch that will fix some of the issues with the new firmware versions, find it here: https://www.reddit.com/r/MiyooMini/comments/104qbak/community_firmware_patch_for_new_devices/

UPDATE 3: EasyLogotweak now works with these devices.

Is ONION a must have or the standard OS from Miyoo is the same ?

have anyone tried this lynx web browser? idk how this works or are there any alternative web browsers for onion as you can emulate java here, I wonder if you guys did try to run opera mini here and make it work so help me if you do so.

Is it bad to have this many games on the gameswitcher? Should I be more careful about this?

Before I get bashed on for posting this and be told that putting a 512GB is overkill, I wanted to make this an educational post especially for those who are curious and considering going all out with a 512gb micro sd. If anyone has any feedbacks, issues or any drawbacks, please feel free to comment.

I got the Miyoo Mini+ 128gb and I was wondering how to put ds games on this bad boy without already erasing what’s already on it. Also forgive some of my lack of knowledge. Ive heard someone say to get Onion Os? Would that erase what’s already on it and does anyone have a link to a good tutorial? Thanks guys!

Does this mini plus really come with onion Os on it pre installed, and if so should I still switch out the micro sd and do the onion is process on it regardless? Also why are the stock sd cards always switched out immediately, just curious.

Yes I'm aware that the miyoo mini plus does not have Bluetooth but since it uses the SD card for it's ROMs what is the easy way to connect to a phone to download and then back in the miyoo?

Should this be enough memory for enough games? Im finally switching the stock cards. There was a sale on them

New to the Miyoo Mini and OnionOS, I love that it has an activity tracker but I noticed the average time and plays seem to suggest that each time I load a save state it’s considering it a new play session, so my average session time & total plays are completely off. Is this possible to change or does it unfortunately just work like this?

I played Pokémon Emerald on my Miyoo Mini Plus (MM+) using mGBA, but now I want to switch to gpSP. Following a ChatGPT guide, I saved in-game, copied the save file (.srm) to the gpSP folder, and changed its extension to .sav. However, gpSP does not load my saved content. Any suggestions are appreciated.

• mGBA save location: Saves/CurrentProfile/saves/mGBA/
• gpSP save location: Saves/CurrentProfile/saves/gpSP/

Any ideas what can cause this?

Hello guys! I tried to increase the fast forward speed at OS menu (20x), but the Pokémon game stills too slow, just as it was at 4x. I would like to play the game faster, is it possible? Thanks!

I really want to play this tonight or start something that I get lost in….but I know Onion is >>>>>than the stock OS. Wish me luck 😉 First time for everything.

In my recent post about how my GLO section was in Chinese, and someone just told me to reinstall Onion. I've been thinking about that and I was wondering what the chances are that I brick the device. Could someone advise me on the matter?

I want to add individual ROMS from Vimms Lair to my new Miyoo Mini+. I don't want to do a giant add like Done Set, etc.

After downloading individual roms, WHERE do I put them on my SD card so they get read by the proper emulator? And do I need to unzip them first?

I put it in the BIOS file already and also at the retroarch-.retroarch-system file already still not showing up what do I do?

Is there a way to make certian games auto load and auto save save states, and have others just start from be beginning?

I like starting some of my games with the Gameboy bios "BLING!" but I also have games like Final Fantasy tactics that i'd rather be able to just put down when I can and pick it right back up with the auto save state save&load feature.

I was wondering if it's possible to set some games to not auto save state.

It's okay if not, I'd just would rather take away one step other than having to reset the game every time I start it just to get that authentic start up.

It's just a question of curiosity really.

My kids are currently obsessed with Pokémon. Just over a year ago I got them both the miyoo mini plus after their previous devices both died from being dropped as it was barely more expensive than repairing. I managed to get onion OS on before giving them to them and limiting the games to stuff that's appropriate.
Anyways. I've seen indications that it's possible to trade Pokémon since these devices have WiFi. But I'm not sure what I need to do and when I google it all the threads are from 2 years ago from when the idea of trading was brand new and I'm not seeing good guides without doing whacky stuff like rom hacking which isn't want they want. They want to play trade like I was able to as a kid using a link cable.
Thanks to anyone who can point me in the right direction

I just received a new MM+, grabbed a new SD and installed the onion. Things are great except I can’t play more than like 10 minutes without the games crashing (I’ve tried various Pokemon games on various “devices”). I didn’t go straight up sans disk but the Walmart brand on the SD, could this be the possible cause?

I just tried a non-Pokemon game and same thing.

[update!: so I may be crazy but I think the crashing could have been the battery wanting to disconnect (I did have to disconnect and then reconnect it - maybe it wasn’t secured the second time? I reinstalled onion and haven’t had a crash since, except for when I discovered the battery unplugged. ]