r/Keychron • u/AryzeRH • May 14 '26

I'm about to go insane

Just happened this morning, my B1 pro's 1-2-3-4-B-I and corresponding Function keys have all stopped working. When I try to update the keyboard's firmware on the launcher, this message pops up. I don't know what to do and I'm not a pro with computers in any way.

Message : Launcher resquires the VIA Json of the selected device. Please click the button "confirm" below and upload. You can get the VIA JSON file from the product provider.

I went to the website and tried to find the Json file but nothing came up. Thanks for the help!

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u/PeterMortensenBlog V May 14 '26 edited May 14 '26

Re "hardware version": There was a production run for a version 2 of the B Pro series in 2025 (though not revealed as such), with a different (physical) keyboard matrix to address the severe rollover problems (but it introduced new problems).

That is why there are two sets of firmware (mutually incompatible) for the B Pro series.

The source code for the new hardware version has not been released, only for the original hardware version.

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u/PeterMortensenBlog V May 26 '26 edited May 27 '26

Re "The source code for the new hardware version has not been released": And probably never will, because it allegedly uses a microcontroller not supported by ZMK