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Acer R5 Wont Power On After Swapping HDD - It's that microswitch!


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#1 BlueDarkness

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Posted 10 December 2016 - 12:48 PM

So I learned that there is an interlock type microswitch under one of the screws that prevents the laptop from powering on unless it is pressed. So after putting it all back together and ensuring the screws were snug, it would not power on! I removed the back again, and simply screwed the particular screw back in until it stopped (which is farther in that it could screw with the back plate on) and it powers on fine.
 
I then called myself crazy and maybe I didn't tighten it enough with the back plate on so I put it bacj together again, ensured the screw was tight, but still no power on. Remove back cover, repeat above without cover on, powers on fine.
 
Whats going on here? Was there some sort of spacer in the hole that fell out when I was removing the screws? I checked that all the screws are the same length. Any thoughts?


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#2 shadow_647

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Posted 10 December 2016 - 02:37 PM

Beats me, but any laptop that has a microswitch to stop me from powering it on if its not pressed dousen't make me want to buy that laptop.

Laptop a what btw ?



#3 BlueDarkness

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Posted 10 December 2016 - 04:23 PM

I'ts an Acer R5 2 in 1. Not terribly happy with this anti-tamper method (that's the only thing I can figure for having such a system). 



#4 Chris Cosgrove

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Posted 13 December 2016 - 06:53 PM

Three possible cures.

 

1/  Use a slightly longer screw.

2/  Drop a mall piece of plastic down the screwhole, or, for the adventurous or the electronically well trained,

3/  Solder a bridge across the switch teminals to permanently short it out.

 

Actually #3 requires that you determine if the switch is opened or closed by the screw. More adventurousness required !  Most likely it is normally open and closed by the screw, in which case shorting it out would work.

 

Chris Cosgrove



#5 JohnC_21

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Posted 14 December 2016 - 08:48 AM

I just watched a teardown video of the R series. It shows there are short and long screws holding the back panel. Was there a chance you accidentally swapped a short for a long screw?






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