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Posted 20 September 2015 - 04:54 AM
Posted 20 September 2015 - 08:06 AM
keyboard and the touchpad didn't work but externally connected devices worked ok
This is your clue. The keyboard and touchpad electronics are integrated into the motherboard BIOS itself, there is nothing to "fix". On many computers, when booted, there is a "beep" when first turned on. That is the keyboard recognition beep coming from the POST screen (the BIOS). They are loaded from the BIOS and have nothing to do with your operating system, although they can be slightly configured for button usage depending on which OS and BIOS your manufacturer included.
First, your laptop is nearing end of life, so be aware. If you have valuable data on it, I strongly suggest that you back it up immediately.
Here are a couple of things that you can try, but no guarantees that it will "fix" the problem permanently.
> You battery needs to be replaced. Every laptop owner knows that eventually the battery will not hold a charge anymore. I am surprised that your laptop even ran with the battery removed. If that will help the problem is anybody's guess.
> You posted that the external USB ports worked ok, so try plugging in a USB mouse and USB keyboard. That may or may not work.
> If you can access the BIOS screen, try setting the CMOS back to factor default (if Sony included that option, you never know with these manufacturers, especially Sony) just in case messing with your laptop corrupted some settings.
Other than that, there isn't anything else to try.
Help Requests: If there is no reply after 3 days I remove the thread from my answer list. For further help PM me.
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