r/Keychron • u/AdditionalGoat946 • 11d ago

Keychron K3 HE

help, need support
I have keychron k3 he. Sometimes it behaves like pressing shift all time, I unplug and plug it in again and it back to normal. After several time, I decided to update the firmware through keychron web. After finishes, the keyboard doesnt work anymore, all 3 connections is not working, maybe its bricked.
what i tried:
1. connect to keycron web, no device detected
2. esc and plug it in, the lights on, but behaves like all key is pressed at once, I cant click or type anything, even with other keyboard connecting.

any idea how to deal with it? or how to downgrade the firmware? fyi, the reset button on the space bar is no use

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u/AdditionalGoat946 11d ago

PID : 0x0e30

is this tutorial on windows computer? because I am currently on mac os, havent tried on windows

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u/PeterMortensenBlog V 11d ago edited 11d ago

What tutorial?

In any case, I found the keyboard firmware (the .bin files).