horizontal line on screen of Kobo Aura One

sbin · 10-28-2016, 12:41 PM

I've just got a brand new Kobo Aura One (firmware 4.1.7729) and I've used it for a few hours a day for some days.

Recently, a horizontal line appeared on screen. Whatever I do, it doesn't seem to go away.
It's always staying there (while reading, on the home screen, on the setting screens, etc.).

Stuff I've already tried:
tinkering with the light settings, rebooting, leaving the device powered off all night long, displaying images and then text, setting the screen refresh at every page turn or after 6 pages, doing a reset to factory settings.

Stuff I haven't tried:
doing a complete discharge/recharge cycle.

Any ideas about how to fix this (assuming it's something actually fixable)?

chrisridd · 10-28-2016, 01:55 PM

It looks like a hardware problem and there's nothing you can do IMO except ask Kobo to replace it :-(

robko · 10-28-2016, 06:48 PM

I'd agree with the above. That definitely looks like a hardware problem.

bgalbrecht · 10-29-2016, 01:42 AM

It's probably a hairline crack in the screen. They have a glass substrate.

alizarin · 10-29-2016, 03:06 AM

e-ink screen is cracked? would replace

sbin · 10-29-2016, 03:24 AM

That's it, then.
I'll bring it back to the store and ask if they can replace it (they should, but things don't always go so smoothly).

Thank you guys

meeera · 10-29-2016, 04:42 AM

I'm not at all convinced it's a crack - there's no diagonal or curved component, and the rest of the screen is working.

TheHazardsDuke · 10-29-2016, 06:18 AM

I had this same problem when I brought a Glo HD last year. Eventually I had to return it as it just stopped working (although I don't know whether that was because of the screen or if something else was wrong with it). Kobo told me at the time that a line like that was very likely to be a broken substrate which is something that can't be fixed. I remember the disappointment at the time as well as the frustration of the return process as the place I brought it from thought I had deliberately damaged it (needless to say I've not shopped there again). I hope you're able to either fix it or get a replacement/refund.

HarryT · 10-29-2016, 06:57 AM

It's not a physical crack in the screen. Looks like a problem with the screen controller to me. Definitely a replacement issue.

robko · 10-29-2016, 10:28 AM

Doesn't look like a cracked substrate to me. They are almost never a perfectly straight line for the length of it and the chances of it not propagating to edge of the screen on least one side or the other is also small. Virtually every time you see a perfectly straight line it's turned out to be a controller failure or something other than a cracked substrate.
Either way it needs to be returned/exchanged.

sbin · 10-31-2016, 08:47 AM

I got it replaced, and my new one has a perfect screen.

(It's a rough transition from my "old" PRST2, but I'll manage

)

10-28-2016, 12:41 PM	#1
sbin Voracious reader Posts: 56 Karma: 14644 Join Date: Oct 2009 Device: Kobo Aura One, Sony PRS T2, iPhone 6, Cybook Orizon, Cybook Gen3	horizontal line on screen of Kobo Aura One I've just got a brand new Kobo Aura One (firmware 4.1.7729) and I've used it for a few hours a day for some days. Recently, a horizontal line appeared on screen. Whatever I do, it doesn't seem to go away. It's always staying there (while reading, on the home screen, on the setting screens, etc.). Stuff I've already tried: tinkering with the light settings, rebooting, leaving the device powered off all night long, displaying images and then text, setting the screen refresh at every page turn or after 6 pages, doing a reset to factory settings. Stuff I haven't tried: doing a complete discharge/recharge cycle. Any ideas about how to fix this (assuming it's something actually fixable)? Last edited by sbin; 10-28-2016 at 01:45 PM.

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10-28-2016, 01:55 PM	#2
chrisridd Guru Posts: 929 Karma: 2146660 Join Date: Nov 2011 Location: London, UK Device: Kobo Aura, Kobo Aura ONE, PocketBook InkPad Color 3	It looks like a hardware problem and there's nothing you can do IMO except ask Kobo to replace it :-(

10-28-2016, 06:48 PM	#3
robko Wizard Posts: 2,454 Karma: 5469320 Join Date: Jul 2010 Device: Kobo	I'd agree with the above. That definitely looks like a hardware problem.

10-29-2016, 01:42 AM	#4
bgalbrecht Wizard Posts: 1,806 Karma: 13399999 Join Date: Aug 2007 Location: US Device: Nook Simple Touch, Kobo Glo HD, Kobo Clara HD, Kindle 4	It's probably a hairline crack in the screen. They have a glass substrate.

10-29-2016, 03:06 AM	#5
alizarin Enthusiast Posts: 37 Karma: 58190 Join Date: Sep 2016 Device: Kobo Aura One	e-ink screen is cracked? would replace

10-29-2016, 03:24 AM	#6
sbin Voracious reader Posts: 56 Karma: 14644 Join Date: Oct 2009 Device: Kobo Aura One, Sony PRS T2, iPhone 6, Cybook Orizon, Cybook Gen3	That's it, then. I'll bring it back to the store and ask if they can replace it (they should, but things don't always go so smoothly). Thank you guys

10-29-2016, 04:42 AM	#7
meeera Grand Sorcerer Posts: 5,659 Karma: 66420972 Join Date: Dec 2011 Location: Australia Device: Kobo Libra 2, iPadMini4, iPad4, MBP; support other Kobo/Kindles	I'm not at all convinced it's a crack - there's no diagonal or curved component, and the rest of the screen is working.

10-29-2016, 06:18 AM	#8
TheHazardsDuke Connoisseur Posts: 51 Karma: 2059996 Join Date: Aug 2016 Device: Kobo Touch	I had this same problem when I brought a Glo HD last year. Eventually I had to return it as it just stopped working (although I don't know whether that was because of the screen or if something else was wrong with it). Kobo told me at the time that a line like that was very likely to be a broken substrate which is something that can't be fixed. I remember the disappointment at the time as well as the frustration of the return process as the place I brought it from thought I had deliberately damaged it (needless to say I've not shopped there again). I hope you're able to either fix it or get a replacement/refund.

10-29-2016, 06:57 AM	#9
HarryT eBook Enthusiast Posts: 85,544 Karma: 93383043 Join Date: Nov 2006 Location: UK Device: Kindle Oasis 2, iPad Pro 10.5", iPhone 6	It's not a physical crack in the screen. Looks like a problem with the screen controller to me. Definitely a replacement issue.

10-29-2016, 10:28 AM	#10
robko Wizard Posts: 2,454 Karma: 5469320 Join Date: Jul 2010 Device: Kobo	Doesn't look like a cracked substrate to me. They are almost never a perfectly straight line for the length of it and the chances of it not propagating to edge of the screen on least one side or the other is also small. Virtually every time you see a perfectly straight line it's turned out to be a controller failure or something other than a cracked substrate. Either way it needs to be returned/exchanged.

10-31-2016, 08:47 AM	#11
sbin Voracious reader Posts: 56 Karma: 14644 Join Date: Oct 2009 Device: Kobo Aura One, Sony PRS T2, iPhone 6, Cybook Orizon, Cybook Gen3	I got it replaced, and my new one has a perfect screen. (It's a rough transition from my "old" PRST2, but I'll manage )

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