Captain Jigglypuff
*On Vacation. Go Away!*
I think there is a way to fix it using the formatting option. This link is from the official Nintendo Switch website. Try this.I need to find a place to get my Switch’s SD card reader fixed. Ever since last January it almost always finds any card inserted unreadable & I’ve had to rely on my Switch’s game data since then.
I bought a Switch Lite to temporarily transfer my Pokémon save data so I don’t have to worry about it being erased, so now I need to decide on whether to send my Switch to Nintendo or just find a local place to get it fixed
Nintendo Support: microSD Card is Not Recognized
en-americas-support.nintendo.com