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Old 04-26-2021, 04:40 AM   #16
nhedgehog
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Thats very strange, I was guessing that the other books are left in memory but with your settings, there should have been a reboot inbetween.
Next try:
1) Is there something unusual with the filenames/folders you are using?
2) How many books are stored on the device?
3) Sometimes the device gets stuck while adding a specific book into the library. Sadly there is no message coming up if this is happening. Odd behaviour like that you are describing could be the result. Only way to find the culprit is to add the books in carefully aranged batches and see if and when the error is happening again.

Last edited by nhedgehog; 04-26-2021 at 04:42 AM.
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Old 04-26-2021, 06:45 AM   #17
wold
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Quote:

Played a bit with the settings yesterday. If I switch to wider line spacing (middle option), it worked for a book that previously had issues. Tried a another thicker book and scrolled through to the end. Issue appeared only at second to last page. Changed to least margins setting, and it worked until the end. This was one of the standard epubs that come pre-installed (Oliver twist).

The logic is beyond me, something to do with how it displays the pages/loads them into memory/???
Not my ideal settings now, but at least I have options to properly finish my books. Still, it should work if given these options, certainly for an e-reader in this price range.
Quote:
Maybe my approach of squeezing as much text on a page (fontsize 7, smallest line spacing etc.) is pushing the limits of the reader app though it shouldn't of course.
Thanks for that suggestion!
Seems you're indeed pushing the limits. The firmware is likely C/C++, which requires close attention to memory allocations, amongst others. The HD resolution, font size 7, and other factors (ebook contents), could load too much data, causing a buffer overflow or some similar issue. Do please report it, so they can fix it.

Quote:
Originally Posted by nhedgehog View Post
3) Sometimes the device gets stuck while adding a specific book into the library. Sadly there is no message coming up if this is happening. Odd behaviour like that you are describing could be the result. Only way to find the culprit is to add the books in carefully aranged batches and see if and when the error is happening again.
This could work to identify that file, and would simplify the process:
1. Get sqlitebrowser https://sqlitebrowser.org/
2. Copy books.db from PB to your PC
3. In "browse data" tab, open the "files" table, and scroll to the bottom.
The last added filename should be listed there. It, or those missing, may cause the issue. You may also inspect the 'Books' table.

PB's also dislike ampersands (&) in the author field.
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Old 05-04-2021, 04:55 AM   #18
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