#1
Keychron
K4 Wireless Mechanical Keyboard (Version 2)
5 positive 0 neutral 10 negative
Based on 15 Reddit mentions
$79.99
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Reddit mentions
Original Reddit posts and comments behind this analysis.
Keychron K4 V2 white led looks yellowish?
First reset to factory defaults Unspecific, but par for the course is resetting to factory defaults and reflashing the keyboard firmware. Though reflashing the keyboard firmware is risky business for the original K series with proprietary keyboard firmware (which includes the K4 V2). It is a differe
...PeterMortensenBlog in r/Keychron
November 29, 2025 5:03 PM
1
Holding Alt stops some keys from working
(K4 V2 is in the original K series. Only K4 V3 got QMK support.) It probably doesn't apply to the original K series, but RGB light off is a problem for some later Keychron keyboards.
PeterMortensenBlog in r/Keychron
July 8, 2025 4:45 PM
1
Connectivity issues with the K4 V2.
Re "Keychron Launcher doesn't detect the keyboard even if it's directly connected via USB (with data transfer cable); VIA isn't compatible with the K4": Yes, the original K series, including the K4 V2, has proprietary firmware and doesn't support the Via protocol. (K4 V3 got QMK (and thus Via) suppo
...PeterMortensenBlog in r/Keychron
August 1, 2025 8:22 AM
1
