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Old 08-20-2020, 07:07 PM   #1
gogu1904
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Cover images not persistent

Hello,

I open the WiFi connection, sync the device. All covers are downloaded on the device and are visible. I close the WiFi. After a certain amount of time (a few minutes, tens of minutes) a few covers are replaced back with the ASCII generated B/W covers. What should I do to force the covers stay on the device? My device is Kobo Aura One LE.
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Old 08-21-2020, 02:26 AM   #2
davidfor
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Someone reported this happening a while ago. But, I haven't seen it on any of my devices. I don't remember if there was a solution. The suggestions to try would have included:
  • Using account repair on the Device information page of the settings.
  • Check the database on the device has no errors.
  • Signing out and back into the account.
  • A factory reset. But, only if absolutely nothing else fixed it.

Other thoughts would be on how much space you have left on the device. Kobo likes to have between 100 and 200MB free for firmware updates. But, I've only seen cover image issues when the storage was actually full.

If the file system is corrupt, it could lose the images. The issue might be that while the cover images are in the cache, they are OK, but, if there was a problem writing to the physical storage, it wouldn't be able to find them later. Checking what is in ".kobo-images" and seeing if the cover images are actually there might tell us something. Checking the file system when connected to a PC might help.

You could try turning on devmode and looking at the logs produced. There might be something in that to show what is happening.
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Old 08-21-2020, 08:22 AM   #3
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It happens to me with this book (and only with this book)

https://www.kobo.com/it/it/ebook/metamorfosi-11

When I turn on the wi fii the cover appear. And when I turn off the cover disappear.

I decided to not to care about that.
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Old 08-21-2020, 09:36 AM   #4
gogu1904
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Thank you, @davidfor. I do have 20 GB free on my KA1 LE. The account repair did the trick. Will see if it holds...

Just to know, if I will have to do it... how do I check the integrity of the Kobo database?

Thank you!

Last edited by gogu1904; 08-21-2020 at 09:46 AM.
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Old 08-21-2020, 10:00 AM   #5
davidfor
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Quote:
Originally Posted by gogu1904 View Post
Just to know, if I will have to do it... how do I check the integrity of the Kobo database?
If you use calibre, the simplest way is with my Kobo Utilities plugin. Otherwise, it is an SQLite database. Any SQLite tools will have a way to do it.
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Old 08-21-2020, 10:55 AM   #6
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Thank you again! All is good with my kobo database, as reported by the Kobo Utilities plugin.
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