Thread: Kobo E_Reader wifi upgrade gone bad
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Old 07-15-2022, 10:21 AM   #968
davidfor
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Posts: 24,905
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Join Date: Jul 2011
Location: Sydney, Australia
Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos
Quote:
Originally Posted by bluedrum View Post
Hi All,

Is Kobo n647 still useable and supported ?
Personally, I don't think they are "useable". I have an old Touch which has a better screen than the WiFi and still gets firmware updated. I don't think it is "useable", so I would find the WiFi worse.

And Kobo officially stopped supporting them three or four years ago. But, hadn't done an update for a while before that.
Quote:
I just got one off ebay and I cannot seem to get it to load books with calibre. This is my first time with an ebook reader or using calibre.

I have been looking through these forums but have not been able to find what I am looking for.

I downloaded Calibre for my Mac OS Monterey and it does recognize the Kobo, firmware 1.9.11.
But When I go to transfer books or synch it in anyway, or update metadata here are the errors I get:



CantOpenError: unable to open database file

Traceback (most recent call last):
File "calibre/gui2/device.py", line 88, in run
File "calibre/gui2/device.py", line 540, in _books
File "calibre/devices/kobo/driver.py", line 364, in books
File "calibre/devices/kobo/driver.py", line 186, in device_database_connection
apsw.CantOpenError: CantOpenError: unable to open database file
That means the database on the device is corrupt. You would need to restore a recent backup or create a new one. And I'm not sure how to do the latter on a WiFi. You might have to do a factory reset. And again, I don't know how to do that on a WiFi.
Quote:
update meta
'list' object has no attribute 'get_collections'

Traceback (most recent call last):
File "calibre/gui2/device.py", line 88, in run
File "calibre/gui2/device.py", line 570, in _sync_booklists
File "calibre/devices/kobo/driver.py", line 1004, in sync_booklists
File "calibre/devices/kobo/driver.py", line 908, in update_device_database_collections
AttributeError: 'list' object has no attribute 'get_collections'
I think that is an error caused by the earlier error. The database wasn't read correctly, so some later actions will not work.

With this, calibre is probably putting the books on the device, but I suspect the problem with the database is preventing the device from importing them when you disconnect the device.
Quote:
I keep seeing posts about Flashing the SD image, which I don't know what it means,but wondering if I need to do that as well? I don't have an external SD card right now in it, but could get one.
Any advice or pointing to other threads or resources would be appreciated.
There is an problem with the last update to the WiFi that can only be fixed by reimaging the internal SD card. And problems such as a corrupt database can be caused by a failing SD card. The WiFi is over 10 years old, so a failing card would be likely and a new card might solve it. Doing this is fairly easy and you can look at Memory Upgrade Mod Guide for some idea of how to do it.
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