Glo HD Kobo FW 4.24 and Calibre 8.11.0 issues? - Page 2

Ripplinger · 09-28-2025, 01:22 AM

I moved just copies of the already DeDRM'd .epubs and added them into Calibre 4.23 and they work perfectly on the spare reader and show up on the homepage.

I tried sending the books to the messed up reader from that PC too but the same issue persists. The other thing I noticed is that the Books area in the lower left doesn't update to show the new books. I did the Database check from Calibre 4.23 and it said ok, did the compression again anyway. The Filter Sorting under Books doesn't always work either, but the more I checked why, it only seemed an issue when sorting Books by date or recent. Then I finally thought to check the time... the battery on the problem reader is probably dying, the date was 2012. Once I fixed that and re-added the books, restarted the reader, it's finally behaving like it should. And finally connected another reader to Calibre 8.11.1 and sent books to it, and it's working fine.

Yes, I'll be kicking myself in the arse even while I sleep tonight for that stupid mistake. And order a new battery in the morning. But 8.11.1 seems to be working with GloHD Firmware 4.23 just fine now.

Thank you both for the help.

JSWolf · 09-28-2025, 07:55 AM

Quote:

Originally Posted by Ripplinger

Did all that, even removed the newer books from the device and resent them, and still having the same issue. I also tried reading older books that were on the reader and now they also won't appear on the homepage after opening them and reading for a bit.

I've got another spare reader I'll test sending it to from my old and untouched Calibre 4.23 that's still on another PC with Windows 10 and see what happens. The main Kobo GloHD I'm reading from hasn't been connected at all since I did all these upgrades, I tried it on a spare reader first. Yes, I have 3 spares, I love the GloHD that much I have no intention of ever giving it up.

Edit: Btw, I am using Calibre 8.11.1, I did have the updated version.

BTW, 4.38.23171 does not have the database corruption bug some of the earlier firmware versions did. So I suggest updating to that version since it has no serious bugs that I know of.

Ripplinger · 09-28-2025, 08:02 AM

This is the very first time anything weird like this has happened. And I'm pretty sure it's all related to the battery being so low that put the time at 2012 that I didn't notice. But I'll make a note of that version, if anything happens again, possibly the updated Calibre might make some differences there, I'll update to that version, thanks.

Sirtel · 09-28-2025, 08:07 AM

Quote:

Originally Posted by JSWolf

BTW, 4.38.23171 does not have the database corruption bug some of the earlier firmware versions did. So I suggest updating to that version since it has no serious bugs that I know of.

It was the 4.37 versions that had the corruption bug. Not any before 4.37 and not any 4.38 version either.

JSWolf · 09-28-2025, 08:11 AM

Quote:

Originally Posted by Sirtel

It was the 4.37 versions that had the corruption bug. Not any before 4.37 and not any 4.38 version either.

Do you recall if any 4.34 firmware had any major problems?

Ripplinger · 09-28-2025, 08:15 AM

Quote:

Originally Posted by Sirtel

It was the 4.37 versions that had the corruption bug. Not any before 4.37 and not any 4.38 version either.

Thanks for that, I should be safe sticking with 4.24.15676 then.

Sirtel · 09-28-2025, 08:17 AM

Quote:

Originally Posted by JSWolf

Do you recall if any 4.34 firmware had any major problems?

No, it's what I have on my Sage (as it developed the double page turning issue with the 4.38 versions). No issues that I've noticed.

JSWolf · 09-28-2025, 09:03 AM

Quote:

Originally Posted by Ripplinger

Thanks for that, I should be safe sticking with 4.24.15676 then.

But, there's no reason not to go with 4.38.23171 as it works well and there are patches for it.

Ripplinger · 09-28-2025, 09:55 AM

But then I need to update all the readers to it, and I'm sure there are some changes between the firmwares, some of which I may not like. So for me since everything still works perfectly and exactly as I want it, there's no reason to go with it either.

Coming to Kobo from Sony readers where there were probably 2 updates total, I've always really hated the constant updates from Kobo. I'm sticking with the one that makes me the happiest for my use.

JSWolf · 09-28-2025, 06:39 PM

Quote:

Originally Posted by Ripplinger

But then I need to update all the readers to it, and I'm sure there are some changes between the firmwares, some of which I may not like. So for me since everything still works perfectly and exactly as I want it, there's no reason to go with it either.

Coming to Kobo from Sony readers where there were probably 2 updates total, I've always really hated the constant updates from Kobo. I'm sticking with the one that makes me the happiest for my use.

Having run 4.24 and now running 4.28.23171, there is no downside to it. There are no changes that I would want removed or changed.

I don't recall when the highlighting changed for ePub, but in some firmware it did and it's now easier and faster.

Ripplinger · 09-28-2025, 06:45 PM

As luck would have it, the very last Glo HD I bought used did update to 4.38.23171 before I got around to swapping SDcards in it, so I did try it out for a bit. The only difference is being able to pinch text larger/smaller which I found annoying and disabled it. I read mention of Parental Control changes too, but again that's something I'd never have a need for.

So I saved myself the hassle of patching and then updating multiple readers for no reason and just put in a larger SDcard with all my books with 4.24.15676, I usually keep an extra SDcard laying around with it, plus a backup of the .img file on my PC just for ease.

If it ain't broke...

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09-28-2025, 01:22 AM	#16
Ripplinger 350 Hoarder Posts: 3,587 Karma: 8281267 Join Date: Dec 2010 Location: Midwest USA Device: Sony PRS-350, Kobo Glo & Glo HD, PW2	I moved just copies of the already DeDRM'd .epubs and added them into Calibre 4.23 and they work perfectly on the spare reader and show up on the homepage. I tried sending the books to the messed up reader from that PC too but the same issue persists. The other thing I noticed is that the Books area in the lower left doesn't update to show the new books. I did the Database check from Calibre 4.23 and it said ok, did the compression again anyway. The Filter Sorting under Books doesn't always work either, but the more I checked why, it only seemed an issue when sorting Books by date or recent. Then I finally thought to check the time... the battery on the problem reader is probably dying, the date was 2012. Once I fixed that and re-added the books, restarted the reader, it's finally behaving like it should. And finally connected another reader to Calibre 8.11.1 and sent books to it, and it's working fine. Yes, I'll be kicking myself in the arse even while I sleep tonight for that stupid mistake. And order a new battery in the morning. But 8.11.1 seems to be working with GloHD Firmware 4.23 just fine now. Thank you both for the help.

09-28-2025, 08:02 AM	#18
Ripplinger 350 Hoarder Posts: 3,587 Karma: 8281267 Join Date: Dec 2010 Location: Midwest USA Device: Sony PRS-350, Kobo Glo & Glo HD, PW2	This is the very first time anything weird like this has happened. And I'm pretty sure it's all related to the battery being so low that put the time at 2012 that I didn't notice. But I'll make a note of that version, if anything happens again, possibly the updated Calibre might make some differences there, I'll update to that version, thanks.

09-28-2025, 09:55 AM	#24
Ripplinger 350 Hoarder Posts: 3,587 Karma: 8281267 Join Date: Dec 2010 Location: Midwest USA Device: Sony PRS-350, Kobo Glo & Glo HD, PW2	But then I need to update all the readers to it, and I'm sure there are some changes between the firmwares, some of which I may not like. So for me since everything still works perfectly and exactly as I want it, there's no reason to go with it either. Coming to Kobo from Sony readers where there were probably 2 updates total, I've always really hated the constant updates from Kobo. I'm sticking with the one that makes me the happiest for my use.

09-28-2025, 06:45 PM	#26
Ripplinger 350 Hoarder Posts: 3,587 Karma: 8281267 Join Date: Dec 2010 Location: Midwest USA Device: Sony PRS-350, Kobo Glo & Glo HD, PW2	As luck would have it, the very last Glo HD I bought used did update to 4.38.23171 before I got around to swapping SDcards in it, so I did try it out for a bit. The only difference is being able to pinch text larger/smaller which I found annoying and disabled it. I read mention of Parental Control changes too, but again that's something I'd never have a need for. So I saved myself the hassle of patching and then updating multiple readers for no reason and just put in a larger SDcard with all my books with 4.24.15676, I usually keep an extra SDcard laying around with it, plus a backup of the .img file on my PC just for ease. If it ain't broke...