Iqunix is a good keyboard but it has some shortcuts that sometime if forgotten can lead you to difficulty in working. I had similar experience when accidentally my CTRL and CAPS keys were swapped ( not physically ). After looking into interter for a while i found that you can swap that by pressing CTRL + A.

Here are other IQUNIX F96 shortcuts

FN + A = Switch to Mac layout

FN + I = Switch to Windows layout

FN + X = View remaining charge ( blinks one ( 30% ), two( 60% ) or three times( 100% ))

FN + Up arrow / down arrow = Adjust brightness

FN + Z = Turn on / off backlit

FN + | = Turn on / off monochrome

FN + Right Shift = Turn on / off RGB

FN + r = Reset

FN + 1 ( hold for 5 sec) = Pair keyboard 1

FN + 2 ( hold for 5 sec) = Pair keyboard 2

FN + 3 ( hold for 5 sec) = Pair keyboard 3

FN + 1 = Switch to keyboard 1

FN + 2 = Switch to keyboard 2

FN + 3 = Switch to keyboard 3

Some signals

Red blinking = Low battery

blue blinking = Ready to pair

White blinking = Switching configuration