MobileRead Forums - View Single Post - In Calibre, the On Device column is empty

DNSB · 02-08-2024, 06:06 PM

You will be signing out of your Kobo account on your Forma. This will replace the database with a blank one but it will not remove your sideloaded content which will be re-imported after you sign in again. As long as you have your Kobo user ID and password, you should be able to sign in again on your Forma.

The other choice to repair the database is the Factory reset option just below Repair your Kobo account in the Device information menu. If you type devmodeon in the search box, you will get an extra item in the Device information menu called Developer options. That also has a Factory reset option which is the full factory reset and will reset your Kobo back to it's factory firmware. This last option is like the manual factory reset and pretty much a last ditch option.

There is a know issue with 4.38.21908 where the database(s) are not being properly closed before connecting which leads to database corruption, another common reason is unplugging your Kobo from the computer without safely ejecting.

My workaround for the open databases has been to restart my Kobo before connecting to my computer. NickelMenu makes this as painless as possible.

02-08-2024, 06:06 PM	#7
DNSB Bibliophagist Posts: 46,708 Karma: 169712392 Join Date: Jul 2010 Location: Vancouver Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos	You will be signing out of your Kobo account on your Forma. This will replace the database with a blank one but it will not remove your sideloaded content which will be re-imported after you sign in again. As long as you have your Kobo user ID and password, you should be able to sign in again on your Forma. The other choice to repair the database is the Factory reset option just below Repair your Kobo account in the Device information menu. If you type devmodeon in the search box, you will get an extra item in the Device information menu called Developer options. That also has a Factory reset option which is the full factory reset and will reset your Kobo back to it's factory firmware. This last option is like the manual factory reset and pretty much a last ditch option. There is a know issue with 4.38.21908 where the database(s) are not being properly closed before connecting which leads to database corruption, another common reason is unplugging your Kobo from the computer without safely ejecting. My workaround for the open databases has been to restart my Kobo before connecting to my computer. NickelMenu makes this as painless as possible. Last edited by DNSB; 02-08-2024 at 06:09 PM.