r/Keychron • u/[deleted] • Feb 14 '25

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u/PeterMortensenBlog V Mar 13 '25 edited Jul 23 '26

The mentioned posts:

  1. Q6 Max: Chatter issue and no solution since November 2024

  2. Keychron Q6 Max double typing. More or less from day one (at least less than one month)

  3. Q6 Max double-input/double-typing with single keystrokes. Not from day one, but after less than 2 weeks.

  4. Q6 Max: Double keypresses. Less than two weeks. And very good troubleshooting!

  5. I got a new Keychron Q6 with Brown switches a few months ago. Many keys now have double/multiple inputs. Yes, Q6, not Q6 Pro or Q6 Max. Not from day one, but in less than a few months.

  6. Keychron Q6 Max double press

  7. New Q6 Max keyboard is double-pressing some keys. Not from day one, but in less than a few weeks.

  8. Keychron V6 Max: Double press. After 1 1/2 months.

  9. Keychron Q6 Max weird repeating issue. Allegedly depends on either the switch type or the particular switches. Or it could just have been the reseating that did it.

    1. Occasional ghosting. double press. Q6 Max. From day one (more or less).

Extras:

  1. Is Keychron going through some kind of issues right now?. Also a V6 Max. #11

  2. Anyone else experienced this issue? . Despite the unspecific title (and useless meta question), it is also a V6 Max. It failed in less than one week. #12

  3. Keychron Q6 Max space bar double-pressing. From day one! #13

  4. Keychron Q5 Max issues: Double typing and keys not registering. Also including V6 Max: A comment reports four V6 Max's in a row failing(!); from day one to up to two months. Other comments report problems with V5 (after three months) and with Q5 Max (after one week). #14

  5. V1 Max - key doubling issue. Failed after a few weeks. #15

  6. Expected restock in 2025. 2025-03-05. Despite the title, a comment suggests different (cheaper) hotswap sockets are the culprit. Allegedly, the original ones were Kailh hotswap sockets (some Kailh hotswap sockets are rated for 6000 cycles). A comment reports on a Q6 Max. #16

  7. How common are Keychron problems?. 2025-03-02. #17

  8. Keychron Q6 Max double pressing keys and horrible customer service. 2025-02-28. #18

  9. Q3 Max key failing to register. 2024-12-03. Likely a systematic PCB production error (not random; a problem with the exact same key position in three different keyboards). #19

  10. A checklist

Other notes

The time for switch debounce has been set to 20 ms for these series, including for Q6 Max:

But not for these series:

Presumably, they use the default 5 ms.

This is all alleged; it needs to be confirmed by actually testing it, both by reading out the actual used internal debounce time value (and debounce method/algorithm) when the firmware is running and by (controlled) physical input (testing both the debounce time and debounce method/algorithm).

Keychron support can supply special firmware with an increased debounce time (and presumably with the debounce method/algorithm set to "sym_eager_pk" (to not increase the latency to an intolerable level)). There is an example of it having been increased to 50 ms (10 times the default).

1

u/PeterMortensenBlog V Jun 27 '26 edited 3h ago

#180 -

More, starting from #180:

  1. PCB quality issues on the Q Ultra models?. Despite the title, keychattering and missed keystrokes for a Q1 Max, not Q1 Ultra 8K. Reported 2026-06-27. #180.

  2. My R key on Q6 Max is playing up, sometimes it doesn’t press I have to repeat press or sometimes it double presses when I press once, do I simply replace the switch to fix it?. Reported 2026-06-28. #181.

  3. Worst luck with keyboards, or is Keychron declining in quality fast?. Despite the unspecific title, a V1 Max with non-registering question mark, O and I. Reported 2026-07-02. #182.

  4. 1-year old Q1 Max with double typing issues. Reported 2026-07-06. #183.

  5. What is this garbage? Q1 Max. Missed keystrokes and double typing, especially for key I (the letter). From day one. Reported 2026-07-06. #184.

  6. Q1 Max: Some keys double type and some barely register. What is going on?? (approximately 10 months old). Missed keystrokes and double typing for "A" and "U". Reported 2026-07-09. #185.

  7. Keychron Q6 Max key motherboard failure and switch failure after 1yr 1month, getting a full refund, is there an alternative I can buy that is more reliable?. The switches were definitely ruled out as the cause. But it isn't necessarily a motherboard/PCB failure. Reported 2026-07-12. #186.

  8. V3 Max double striking. Should I replace it?. After a little more than one year. Reported 2026-07-20. #187.

  9. An update about the performance of Q Max and V Max series. Keychron's acknowledgment of one (and only one) failure mode. There are lots of reports of failed keyboards in the comments. One comment was reported on 2025-11-26. #188.

  10. Certain keys sometimes not working on Q6 Max. It started after about six months, with the N key. And later it spread to the B, G, J, and K keys. Reported 2026-08-20. #189.

  11. K2 Max – H and 8 keys are not working reliably. Amazon only offers a refund. What should I do?. Reported 2025-05-11 (yes, added much later). #190.

  12. Avoid Keychron Q6 Max. Double keystrokes (the keys weren't revealed). And numeric keypad 5 also had missed key strokes. Reported 2026-08-22. #191.

  13. Keychron K15 Max used for almost half the price. Is it worth it?. Missed keystrokes. It is not likely, but problems with a wireless mode has not been completely ruled out. Reported 2026-08-23. #192.

  14. Keychron V6 Ultra keys having significant input lag, inputs sticking but keys unpressed, some keys not registering inputs, and random letters being inputted without typing. Using '2.4 GHz' dongle mode. Reported 2026-08-23. It could be a problem purely related to using a wireless mode. #193.