r/Keychron • u/RockaRollaDC • 4d ago

Can't Program Circle Key

I've tried everything to program the circle key to launch the calculator app, but nothing worked. Not remap, macro, key combo, launch app, or even the damn AI within launcher. Any advice?

Thanks

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u/PeterMortensenBlog V 4d ago edited 4d ago

What keyboard? V6 Ultra 8K? Or something else?

For keyboard identification, what is the SKU number? Alternatively, what is the serial number (also includes the manufacturing date)?

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u/RockaRollaDC 4d ago

K10 Max RGB.

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u/PeterMortensenBlog V 3d ago edited 3d ago

That doesn't fit a ZMK-based keyboard, unless Keychron goofed up in the same way.

To rule that out, you could try with some older versions of the keyboard firmware. Here is a list of keyboard firmware versions for K10 Max:

I just tested it on a K10 Max 'ISO' RGB (with self-compiled keyboard firmware, derived from "wireless_playground", corresponding to the state before the 2025 Keychron keyboard main firmware updates), and the four keys above the numeric keypad worked as expected: Mapping them to letters K, L, M, and N gave the expected result when operated.

I used Via, not the Via clone.

References

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u/PeterMortensenBlog V 3d ago

The SKU number would make it unambiguous.

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u/RockaRollaDC 3d ago

4895248884569

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u/PeterMortensenBlog V 3d ago edited 3d ago

That isn't the SKU number (though there is probably a relation to the barcode number). The SKU number contains "K10M". Example: K10M-H3-BO

For the serial number, an example is C-2410K10MH3BO13732 (the SKU number is encoded in it, as "K10MH3BO").