I use a BT keyboard designed for use with a desktop PC with my Ax, and it works fine. If this keyboard uses standard HID/keyboard profile, it will work. I can't guarantee it has that, though!
I looked on Nokia's website, and it is not very helpful! I'm sure they want to sell you a Nokia phone to go with that keyboard.
Please be the brave one and buy this keyboard, then let us all know if it works!!!
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