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This iteration of Amazon's Kindle Paperwhite series was released on June 30, 2015. The Kindle Paperwhite 3rd Generation is a 6-inch, 300 PPI reading display tablet that is Wi-Fi capable. The designated model number is DP75SDI.

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Tiny little electronic component came out of my Kindle...

I actually have a Kindle Paperwhite 8th Generation but that wasn’t in the list.

I figure that any site with a Teardown section has the readers to help me so here it goes.

One day the touchscreen just stopped working.  I can still charge, I can turn it on and off, but when the “Swipe to Unlock Kindle” appears, swiping does nothing.   It’s on an ad so the “Read Now” does nothing either.

I can reset with the 40 second holding of the button and that brings me to the Home screen but again, not responsive to touching anything.

I also noticed a very quiet rattle of something inside when I move the Kindle from side to side.

I called Amazon and they basically said they’d only credit me $15 for the device so I figured I’d try and open it and see if the rattle was anything.

I managed to get a corner open, and directed the “rattle” to that corner. A tiny white component came out.

I opened the device further to see that the screen was surrounded by these and one was missing.

What are these?  Is this the cause of the touchscreen not working? Is it worth trying to solder it back on?  If a mini resister or capacitor, can I replace with a larger one of the same value?  Any help appreciated.

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First image shows the internal board. As you can see, the 5th component on the top from the left is missing. The second image is face-up and the best close-up I could do. The component contacts appear to be on the sides.

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Hi @chke ,

Post some close up images of the component and also where you think it is missing from.

Here's how to do this. Ajout d'images à une question existante

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I found a post from when the Kindle Paperwhite 8th Gen came out that had the following description:

The 8th Generation Kindle has a six inch e-Ink Pearl display with a resolution of 800 X 600 and 167 PPI. It does not have a capacitive touchscreen, instead it employs Infrared Touch technology by Neonode.

Then in doing a search of Neonode, I found a description along with the following picture:

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So this says it all. The missing component is either an LED, but not to provide light to the screen but an integral component of the touchscreen, or it could be a light detector, and apparently if one component drops off, the entire touchscreen system goes down. Neonode appears to be an interesting technology that can turn any surface into a touchscreen.

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In case someone runs into the same issue, I soldered the component back in place matching the component orientation based on green stripes on the side facing the screen as on the other LEDs in the unit. I did my best to line it up exactly as the others were but ended up just using the solder to hold it in place and make the connection (it's very small). AFTER I put everything back together, the touchscreen worked perfectly. (It did NOT work until the unit was completely back together.) I was expecting a dead portion of the touchscreen because the component orientation wasn't perfectly lined up with the others (off by maybe 15 degrees), but I can't find any dead areas and works just fine.

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Hi @chke ,

If you have a DMM (digital multimeter) you can try to measure the component with the Ohmmeter function. If it’s a resistor or an inductor you will get a reading. If it is a capacitor it will hopefully show open circuit or a reading that slowly changes as the capacitor charges to the voltage from the meter. Reverse the meter’s test leads and it should react again when tested

If you measure the others on the board you may get similar readings although being connected still in their circuit path may influence it and it may be different than when it is tested in isolation.

Unless there are some markings on the component (I couldn’t make any out when zoomed in) there will be no way to find out what its’ value and possibly type is, i.e. if it tests open circuit, is it a capacitor or a faulty resistor?

Carefully resolder it back on so that it is mounted the same as the others and check what happens.

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Thank you for your reply. I'm certainly going to try to solder it back on. I was hoping to find someone who could shed some light on what this design was. My guess is that these are going to be LEDs that when the case is on provide light to the screen, so I could see if the multimeter lights the LED in one direction and not in the other but I don't want to burn it out. I can't imagine any design that would need capacitors or resisters evenly spaced around the underside of the screen. Then, I'm wondering if an LED, is it related to the touchscreen ability going bad. I'll probably solder it back without testing and see if the touchscreen comes back.

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Charles Kenney sera éternellement reconnaissant.
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