Weird. I don't think it's the size - I had a 128GB one in my car for a while. I assume they work elsewhere?

This claims to be USB 3.0: https://www.amazon.com/SanDisk-Ultra-128GB-Flash-Drive/dp/B01BGTG2A0

might be the usb. what i would do if i was in your situation is first i would see if i have any other usb flash drives laying around, if it contains important data i would use Clonezilla to make a clone image of that usb flash drive, that way i can test it temporary to see if it's the usb that's the culprit. If it works then i'll quickly restore that USB drive to it's previous state using clonezilla and i'll look into purchasing another usb. Or I may simply make a backup of that drive onto a terabyte passport or something and use that current usb that works

I'm using this 128gb ultrafit sandisk usb btwhttps://www.amazon.com/SanDisk-Ultra-128GB-Flash-Drive/dp/B01BGTG2A0/ref=asc_df_B01BGTG2A0/?tag=hyprod-20&linkCode=df0&hvadid=309776868400&hvpos=1o3&hvnetw=g&hvrand=11469615575049054703&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9031095&hvtargid=pla-365069392053&psc=1

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if that still doesnt work then i would unmod my snes classic and start over from scratch. I believe there's a reset kernel option or uninstall everything option in the hakchi menu somewhere. After that's done, i'll mod it again and start off by simply loading new SNES games in there to see if it pops up in the menu and is playable. just gotta keep troubleshooting little by little and continue building it up.

This is the OTG cable I use btw. I had to replace it a few months ago because it started to fail on me. so it's possible the OTG cable could be faulty too

https://www.ebay.com/itm/152727721317

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