r/Keychron

Bought a faulty keyboard that has a whole row that doesn’t register as it should and wrote to support 6 days ago with no response whatsoever.

I’ve tried factory resetting, cleaning the brand new board but nothing seems to work. is the support usually like this?

I’m trying to figure out whether my keyboard actually supports full QMK custom firmware flashing (C code modifications + QMK Toolbox), or if it’s limited to VIA/ZMK-style configuration only.

My keyboard:

• Keychron K10 Pro SE2
• VID: 3434
• PID: 0AAB
• Wireless model

What I successfully did so far:

• Installed QMK MSYS
• Cloned Keychron’s qmk_firmware fork
• Found the keyboard path: keychron/k10_pro_se2/ansi_lightless
• Edited keymap.c
• Added custom C code (process_record_user, random delay macro, etc.)
• Successfully compiled firmware and generated .bin

But flashing is where things get weird.

qmk flash always hangs on:
“Flashing for bootloader: stm32-dfu”
and dfu-util -l only detects my camera DFU device, not the keyboard.

However:

• Windows detects the keyboard as HID
• VID/PID 3434:0AAB appears
• Zadig shows “usb DFU (Interface 0/1)”
• Official firmware reflashing works
• QMK compile works
• But QMK Toolbox / dfu-util flashing does NOT

So my questions are:

1. Has ANYONE successfully flashed custom QMK firmware with modified C code onto this exact keyboard or a similar K10 Pro SE2 / ZMK variant?
2. Does this keyboard actually support full QMK firmware flashing, or only VIA-style remapping?
3. Is there a special HID/vendor bootloader flashing method for these newer Keychron wireless/ZMK boards?
4. If this model is effectively limited, which Keychron/non-Keychron wireless keyboards are confirmed to support:

• QMK Toolbox
• custom process_record_user
• custom C code
• successful qmk flash

Any success stories, GitHub repos, or exact working models would really help.

there are many people who have issues with defective Keychron products or warranty denial for those products.

List them here so that prospective buyers can make an educate decision if they should take the risk

I just build my first custom keyboard and I used a Keychron Q7 barebones for the base, but i've just encountered a problem. I was typing to make sure that all of my keys were working but realized that my 3 key doesn't work properly. I have to use an excessive amount of force just to make the 3 key work. I don't think it's the switches because I tried swapping of the switch for another and still had the same problem. If anyone knows any possible fixes or the cause of my problem please let me know.

Hello! Keyboard newbie here. I ordered the Q11 Ultra keyboard but the one (anticipated) feature I wanted is missing: The keycaps and switches are *not* low profile. Looking for keycaps is confusing as I don't get what exactly is the criterion to know if they are compatible or not. I like keycaps like the Logitech G915 TKL have (not flat choc but decent minimum height and shaping). Are there options out there or am I stuck with the "THOCK" so many people seem to be after (I respect their likes, it's just not so much pleasant for me)?

Layout is "ANSI US" if that is relevant, thank you.

I switched out keycaps and now the entire q row isn’t working. I did notice a bent switch but replacing it and resetting the keyboard hasn’t helped. Any advice?

Adv with a 10 % off code for newsletter registration.

After registration you tell me that for the 10 € code. You have to use a minimum purchase of 80 euro. I call that a false adv scam.

Also it showed % not € on the adv.

The item i want cost 79.99. Great and there is no other item below 10 euro. So no point in using it. I feel scammed ngl.

Hey everyone! I’ve been looking into the Keychron K2 HE and I’m seriously considering buying it. A few of my friends have Keychron keyboards and they all love them, which is what got me interested in the brand.

I’d mainly use it for daily use (writing, coding) and gaming. I don’t know much about mechanical keyboards in general — the main thing I know about the K2 HE is that it uses hall-effect (magnetic) switches instead of traditional mechanical ones.

What should I know before buying it? Any tips, things to watch out for, or things you wish you knew before getting it? All advice is welcome!

Hello! I've had a SteelSeries Apex 7 for several years now, and I have been wanting to change to a new keyboard. I've been browsing the Keychron keyboards, but I'm having trouble making sense of the differences of the various models/series. I would like some recommendations.

• I use a desktop PC and would primarily use it for gaming and typing. I play a wide variety of games, including FPS, management, turn-based strategy, and basically anything else. Either wired or wireless is fine with me.
• I greatly prefer a 100% keyboard. I could do 96%, but I like my numberpad. I am open to unusual shapes though, such as a split keyboard (though I've been told Alice-shape keyboards are a bit tricky for gaming). Normal-profile, no low-profile.
• Mechanical switches. I greatly prefer clicky switches. In the absence of clicky, though, I can settle for tactile, so long as it gives a satisfying clack/thock sound for typing.
• I would like a keyboard that is white/light gray, or brightly colored in some way. This is not necessary though. I suppose I could also swap out the keycaps at a later date, though that leaves the frame the same.
• RGB would be a very nice plus. Not necessary, but would be nice.
• My budget is flexible.

Hey everyone, I’m in need of some troubleshooting help. My Keychron K2 V2 (White Backlight) is completely bricked after a firmware issue.

The Symptoms:

• The keyboard is completely dark (no backlights at all).
• The only sign of life is that the side battery/charging LEDs turn on when plugged in.
• Windows gives absolutely zero reaction when I plug it in—no connection chime, no device list refresh, and nothing shows up in Device Manager (even with hidden devices shown).
• QMK Toolbox and the Keychron Launcher web app do not detect any device.

What I’ve Already Tried:

1. The standard Esc key method: Unplugging, holding Esc, and plugging it back in does nothing.
2. Shorting the boot pins: I located the two holes under the spacebar. I used metal tweezers to short them while plugging in the USB cable. Still, Windows doesn't acknowledge any device connecting.
3. The Bluetooth-mode trick: Tried shorting the pins while the side switch was set to Bluetooth/Off to see if it would force direct USB routing. No change.
4. Isolating hardware: I am using a verified USB-A to USB-C data cable plugged directly into my motherboard's rear USB ports (no external hubs).

Before I go through the hassle of opening the case:
Has anyone encountered a K2 V2 that goes completely dead on data lines but still shows charging lights? Is it worth unscrewing the case to physically unplug the battery from the PCB to drain the capacitors, or does this sound like a completely fried MCU/dead flash memory?

Any advice or alternative jump-start methods would be heavily appreciated!

I just got my K2 HE unboxed it plugged it in for the software connected but no keys are working at all. The back light works and can be controlled with the software but no matter what the keys aren't working. That aren't working so I can't do the fn+j+z to reset the keyboard is my only option to try to return the keyboard to Amazon

I tried my friends Keychron Q6 Ultra 8K Full Keyboard (red switches) at work and I was hooked. I went on Keychron page to buy it today and saw the HE one. I was wondering does the Q6 HE 8K feel similar to the Q6 Ultra 8K or the difference is big. I’m not a gamer but I’m done with my masters in June and plan to be gaming again. I do value the feel more than for gaming. But if the different is not big I don’t mind getting the HE.

Thanks. Wish I could type on the HE but nobody at works has one lol.

Seems like I can't get it to work. I wanted to remap some of the buttons.

Is there any way to boost the brightness of the backlight of the key itself? The light behind the letters are dim and hard to find in dim lighting.

I'm trying to get my Keychron v5 working with my KVM switch. All ports on that switch are USB-A. I'm not having any luck getting the keyboard recognized when I use a separate C to A cable or a C to A adapter. Anyone have any thoughts?

Hey everyone, just got my Keychron K3 with Spanish ISO layout and I'm having trouble getting it to work correctly on macOS.

The key to the left of Z (the extra ISO key) outputs º instead of < and >. Everything else seems to be working fine after setting the input source to "Español" in System Settings.

My setup:

- Keychron K3 Spanish ISO layout (K3 V3.)

- macOS Sequoia

- Input source: Español

What I've tried:

- Switching between "Español", "Español - antiguo" and "Latinoamericano" input sources

- Searched for a "Spanish ISO" or "Keyboard - ISO" layout in System Settings — not available

- Keyboard Viewer shows the wrong mapping for that key

Has anyone managed to fix this without Karabiner-Elements? Is there a native macOS solution I'm missing?

If Karabiner is the only way, has anyone already set up a profile specifically for the Keychron K3 ISO Spanish that they can share?

Thanks!

My Q6 Ultra arrived today - my first Keychron keyboard.

If I type any word that has repeating characters in sequence, like 'missing' (or my bloody Windows password), 50% of the time, the keyboard doesn't register the second keypress and it sees 'mising'. It does this with all characters, not just s.

It does it on wireless and wired. I have updated the firmware and I have tried all the polling rates. I've tried it on another PC running Linux thereby ruling out PC hardware & OS.

Is my keyboard just DOA? I searched about this issue and saw something about 'debounce' (though not on the Q6 Ultra specifically) - but honestly, I'm inclined to take the view that if it's that much faff and bollocks just to be able to type a word in, then I should just return it to Amazon and try something else.

Does anyone else have this issue on a Q6 Ultra?

Thanks

I just pick up the new Q11 Ultra. I was setting it up playing around with test typing. Note I am not the most accurate typer, so sometimes I spam the backspace. I notice the key strokes were not getting counted accurately, I tested other keys and same thing.

The fix is buried in the Keychon launcher, under advance mode and noticed the default for debounce was set to 50ms. Changings this to 10ms did fix this for me.

Question is there a way to get lower than 10ms?

ETA: location in launcher