USB devices not connecting to Galaxy Tab A9+

[Jakeruk]

I have a Akai LPK25 mini MIDI keyboard and a Korg nanoPAD2 controller which don't power up or have any functionality when I connect them to my Galaxy Tab A9+

They work fine connecting to my old Redmi Android phone and old Blackview tablet!

Anyone any ideas? I've unlocked Developer Options and played around a bit with default USB connections but nothing seems to work. Wondering if there's any way to log USB connections, or if there's a security setting I need to disable?

thank you, Jake

[johnowl]

I bought Galaxy Tab A9+ to use with my keyboard Casio LK-S450 and it worked. Two weeks later it's not working anymore. But the keyboard works with my Google Pixel phone. So, it looks like a Samsung issue.

[Jakeruk]

Thanks for this -- I had a software update a couple of weeks ago, keyboard worked fine. Tried it again today, it had stopped working! So yeah, looks like a Samsung issue, bit of a design fault 😞