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Old 01-10-2017, 11:42 AM   #1
ejseeks
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Unhappy screen flickering and pixelated

Hi there,

I bought a Kobo Aura H20 ereader which I then sent back as it appeared faulty - the screen was flickering, as if there was a loose wire for example, going from white to black and back again, taking a long time to scroll and grainy text flaying up as it did so, etc. Iíve now just received my replacement and itís the same if not worse... Does anyone know what this could be and if thereís a common fault or some reason this would be happening? The whole process or returning and getting a new one took ages so I donít want to have to do this again if thereís an easy fix, but if thatís the nature of the ereader Iíll return it again as it makes my eyes go funny and I couldnít read off it.
TIA,
Emma
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Old 01-10-2017, 12:24 PM   #2
robko
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That sounds like you're seeing e-ink refresh and it's going to be present in all e-ink devices. Are you trying to read pdf files? They will definitely make what you are describing worse. Normally if you are reading an epub file it will flash to black once when you turn the page and most people tune it out after a short period of use. For pdf's it needs to "clean up" the screen (which is what the black screen does) every time you move around or else you'd have ghost images of what was previously on the screen and it would quickly get pretty muddy looking. PDF generally is not a great experience on any e-ink, but some devices may do pdf reflow (if it's just text) that may help you with this.
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Old 01-10-2017, 02:12 PM   #3
JSWolf
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There is an option in settings to not have the black flash as often while reading. And there are patches to the firmware to allow you to have an even more page turns without the black flash.

And just to let you know, there is nothing at all wrong with your H2O.
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Old 01-10-2017, 05:57 PM   #4
DNSB
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Quote:
Originally Posted by ejseeks View Post
Hi there,

I bought a Kobo Aura H20 ereader which I then sent back as it appeared faulty - the screen was flickering, as if there was a loose wire for example, going from white to black and back again, taking a long time to scroll and grainy text flaying up as it did so, etc. Iíve now just received my replacement and itís the same if not worse... Does anyone know what this could be and if thereís a common fault or some reason this would be happening? The whole process or returning and getting a new one took ages so I donít want to have to do this again if thereís an easy fix, but if thatís the nature of the ereader Iíll return it again as it makes my eyes go funny and I couldnít read off it.
TIA,
Emma
What were you reading to see the screen scrolling? Normally, the screen is rewritten not scrolled. As for the flashing, that should happen every 6 pages by default when reading epubs.
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Old 01-10-2017, 07:52 PM   #5
PeterT
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Almost sounds like reading a PDF

Sent from my Nexus 7 using Tapatalk
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