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Repair information for the Logitech K750 wireless solar keyboard. First available on Amazon in 2011. Model numbers: 920-002912 (Windows), 920-003472 (Mac).

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The on/off switch does not work anymore

I have this problem (Logitech seems to have put obsolescence on the switch to kill the keyboard). Curiously, the switch is always "on" and drain the battery even if we do not use it.

Have anyone solve the problem ? How ?

Thanks.

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This shouldn’t be a real problem, as the keyboard charges when it’s on, so be sure to have some light shine on it part of the day and that’s good enough, indirect window light it’s perfectly fine enough.

IIRC maintaining Caps lock pressed (even with the power switch off) makes the keyboard be powered on, but without charging. I believe this is there in place for diagnostic reasons and resetting something. It could be stuck in some way so that could be a problem, just leave the power switch on and let it charge every day.

Battery getting old makes it appear as if it wouldn’t charge, in my experience (4 batteries dead in total with 2 keyboards, about 3 years each) they don’t last long, and has very little to do with usage or light exposure as I have one of them in a very well lit area and other in a mostly dark space.


Cheers

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It's not always possible to expose the keyboard to light on a regular basis. After the on-off switch is stuck-at-on the battery will invariably fail from being repeatedly drained.

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