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I have a D255-N55DGws that I like to break out for use when travelling insead of lugging about my large laptop.
Recently this developed a fault on the "A" key and only the A key
- this would be the case whether running Windows 10 or Ubuntu
- if I plug in an external USB keyboard the A works fine
I obtained a new replacement keyboard from ebay and installed it only to find that the same key does not work.
The ZIF connector for the cable looks to be seated properly.
I'm at a loss to work out whether this is a coincidence that the new keyboard arrived with the same fault as the old one, or whether there is a fault somewhere else on the laptop?
Does anyone have a link to specs for how these keyboards work (e.g pin out for the cable) and I could have a look at the signals on my scope or meter to work out what might be going one.
Or indeed any suggestions as to what might be the problem.