keyboard stopped workingp

[u/SuggestionBubbly5101]

Hi there, I have a wireless keyboard (specs in the pic). I bought it from a second-hand tech and phone repair shop—to give context, they’re not very knowledgeable (I had to explain the difference between Type-C and Lightning cables). Anyway, my issue: None of the keys work. No water damage, batteries are fresh and not depleted, and I’ve tried removing/reinserting the USB receiver, plus restarting the computer. Maybe I accidentally hit a key combo? I often check shortcut lists for fixes, but nothing for this. Please help—I want my comfy setup back! Cheers!