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mathil · 11-26-2020, 05:33 PM

Well, I've just had my very first forced restore on a Kobo in... 7 years I think?

Latest firmware installed, patches applied, Windows 10 64-bit laptop with Calibre 5.5. I wasn't doing anything unusual - I had the reader connected to Calibre so I could send over a couple of books, and while I was at it I copied over a couple of .otf fonts (acquired normally, no shady sources). Something I've done dozens of times and never had a problem with. Made sure to eject and disconnect the device properlym when there was no communication with the device.

What happened next is that the usual loading screen appeared and the progress seemed to go on as slow as molasses. When that was over the device reset and showed me the language choice screen, appearing to have restored itself to factory default - but when I went over the steps required to connect it to the Wi-Fi network it remembered the password, told me the device was up-to-date and the loading screen started again. At that point I forced a reset with page button+power button and the device turned on normally showing me only 100 ca. books of the 3000 I had loaded on the device (some sideloaded, some from my Kobo account). I ended up restoring it to factory default manually to make sure everything was okay.

So, problem solved (I guess...) but - what do you guys think happened? I assume it was a database corruption, but I have no idea how that could have happened, considering I made sure to follow all of the proper steps before disconnecting the device from my laptop. The font files are fine; I checked the .epub files I sent over with EpubCheck and there are no errors. Any ideas?

11-26-2020, 05:33 PM	#1
mathil Evangelist Posts: 445 Karma: 287725 Join Date: Sep 2014 Location: Europe Device: Kobo Aura H2O/Glo HD/Libra 2, Kindle PW3/PW5/PW11, Boox Palma	Kobo Libra factory reset itself? Well, I've just had my very first forced restore on a Kobo in... 7 years I think? Latest firmware installed, patches applied, Windows 10 64-bit laptop with Calibre 5.5. I wasn't doing anything unusual - I had the reader connected to Calibre so I could send over a couple of books, and while I was at it I copied over a couple of .otf fonts (acquired normally, no shady sources). Something I've done dozens of times and never had a problem with. Made sure to eject and disconnect the device properlym when there was no communication with the device. What happened next is that the usual loading screen appeared and the progress seemed to go on as slow as molasses. When that was over the device reset and showed me the language choice screen, appearing to have restored itself to factory default - but when I went over the steps required to connect it to the Wi-Fi network it remembered the password, told me the device was up-to-date and the loading screen started again. At that point I forced a reset with page button+power button and the device turned on normally showing me only 100 ca. books of the 3000 I had loaded on the device (some sideloaded, some from my Kobo account). I ended up restoring it to factory default manually to make sure everything was okay. So, problem solved (I guess...) but - what do you guys think happened? I assume it was a database corruption, but I have no idea how that could have happened, considering I made sure to follow all of the proper steps before disconnecting the device from my laptop. The font files are fine; I checked the .epub files I sent over with EpubCheck and there are no errors. Any ideas?