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Author Topic: Fixing my QFR  (Read 1290 times)

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Offline do_Og@n

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Fixing my QFR
« on: Tue, 18 June 2013, 23:50:42 »
I just bought another QFR about a month ago and I am having the following issues:

 1- The G key has intermittent issues (It won't send the key response until I press it twice and then it will work just fine for a bit)
 2- The M key has the same issue as the G key

I've plugged it into other computers and it seems to work just fine on them but no matter what USB port I plug it into on mine the G and M keys have that responding issue. It has the blue switches and the click sounds the same as the other keys.

Is there anything else I can try or would me modding this keyboard with the Vintage Blacks I've been meaning to resolve the issue?

Or is this a switch issue or a PCB/Controller issue?
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Offline Photoelectric

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Re: Fixing my QFR
« Reply #1 on: Tue, 18 June 2013, 23:55:00 »
Not sure if this will help and if you want to void your warranty, but I've read that over tightened cases can cause such issues with QFRs.  You can try loosening the bolt connecting the top cover with the bottom.
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Offline do_Og@n

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Re: Fixing my QFR
« Reply #2 on: Wed, 19 June 2013, 01:00:46 »
Quote from: Photoelectric on Tue, 18 June 2013, 23:55:00
Not sure if this will help and if you want to void your warranty, but I've read that over tightened cases can cause such issues with QFRs.  You can try loosening the bolt connecting the top cover with the bottom.

At this point it is worth a shot. Thanks!
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Offline rootwyrm

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Re: Fixing my QFR
« Reply #3 on: Wed, 19 June 2013, 01:06:05 »
Quote from: do_Og@n on Wed, 19 June 2013, 01:00:46
Quote from: Photoelectric on Tue, 18 June 2013, 23:55:00
Not sure if this will help and if you want to void your warranty, but I've read that over tightened cases can cause such issues with QFRs.  You can try loosening the bolt connecting the top cover with the bottom.

At this point it is worth a shot. Thanks!


Different keys, exact same problem I had - either it's Left Alt or defective controller. Left Alt is definitely not actually fixed. Loosening the case will not help either way. It will only continue to get worse over time, resulting in more keys with intermittent function or complete failure.

Better off just harvesting the switches and buying something from a manufacturer that cares about more than just a 25%+ margin on every unit and actually honors their warranty.
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Offline do_Og@n

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Re: Fixing my QFR
« Reply #4 on: Wed, 19 June 2013, 02:14:42 »
I am tempted to swap out the switches either way just to see if that resolves the issue. If it doesn't than I'll harvest the switches and get a new one.

I haven't had this issue with any of the 3 QFR's I've owned and out of all the cheaper boards out there I still believe the QFR to be at the top. Though they can't compare to the Filco and Poker 2 in build quality.
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Offline khaangaaroo

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Re: Fixing my QFR
« Reply #5 on: Wed, 19 June 2013, 02:17:15 »
Quote from: rootwyrm on Wed, 19 June 2013, 01:06:05
Different keys, exact same problem I had - either it's Left Alt or defective controller. Left Alt is definitely not actually fixed. Loosening the case will not help either way. It will only continue to get worse over time, resulting in more keys with intermittent function or complete failure.

Better off just harvesting the switches and buying something from a manufacturer that cares about more than just a 25%+ margin on every unit and actually honors their warranty.

What exactly was wrong with your QFR? I vaguely remember you posting about it but I can't find the thread. It's true that the QFR has had a bunch of issues. I've experienced the broken left alt, and the 'qwer' row malfunction on different QFRs. But you can't just say "it will only continue to get worse over time" without understanding what's causing the failures.

The left alt issue was caused by a poor solder joint on that switch. It can be fixed by resoldering solder pad to the switch pin. It does not affect other keys outside of the alt key.

The 'qwer' and 'uipo' keys share the same trace, and the screw at the bottom puts pressure on the trace, causing that row to go out.

The G and M keys do not share the same trace, so it's unlikely that unscrewing the case will fix this issue. (But still worth a try.)

I'm not defending CoolerMaster. I agree that the QC should be a lot better. But I don't think it's time to harvest switches and buy another keyboard just yet. I doubt it's a controller problem because all the other keys work fine. The fact that it's different keys from ones you had issue with means that it's a different problem. You can't just assume all QFR's with any single one of these numerous problems will all end up being a complete failure.

I'm all for figuring out what it is, and fixing it, for keyboard science :)
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