Libra 2 won't update properly after reimaging sd card

Old_Guy · 01-31-2026, 02:17 AM

Thanks to this forum I was able to unbrick my wife's libra2 by reimaging a new SD card.
The device seems to work properly EXCEPT it gets stuck in an update loop if I connect to wifi. I can connect to pc to sync and it loads up books and acts like it gets an update but the SW revision level never changes (stuck at 4.32 from 4/14/22)

I've manually kicked an update file over to the .kobo directory as per kobo instructions - no change.
Also as last ditch I replaced the 3 directories with the original files from the old questionable SD card but no change.

Other weirdness is the SN is Nooooooooooooooooooooo and it always forgets the WIFI password.

It kinda works ok but if I try to sync by wifi it tries to grab an update and then gets loop stuck and never gets the book.

any thoughts?

thanks

DNSB · 01-31-2026, 04:40 PM

The serial number is deliberately zeroed in the image. If you use a hex editor, you can find the serial number at 0x200.

Some people have reported issues with updating in one step to the latest firmware. Check the firmware version you are currently on and try updating in steps (say, your current version is less than 4.33.19759, update to 4.33.19759, then to 4.37.21586 and then to 4.38.23171 before trying for the latest (currently 4.38.23552) version.

Old_Guy · 01-31-2026, 06:45 PM

good thought.
I grabbed 4.33.19608 from this nice page https://pgaskin.net/KoboStuff/kobofi...oogle_vignette

but still stuck on 4.32...

anyone hear of SD card compatibility issues? it loads books via usb ok so i doubt it but ...

Old_Guy · 01-31-2026, 06:53 PM

BTW i used the rev_E.img since the board number ended in +6E0.

should be correct thinks

Old_Guy · 01-31-2026, 09:30 PM

I deleted all the partitions from the sd card and reimaged it a second time.
update on reboot worked first time through.

thanks so much for your help

BR

DNSB · 01-31-2026, 09:34 PM

Great to hear you got the Libra 2 working properly. Other people have reported using the SD Association's SD Memory Card Formatter for Windows/Mac when they had errors while copying the image to the card.

01-31-2026, 02:17 AM	#1
Old_Guy Junior Member Posts: 6 Karma: 10 Join Date: Jan 2026 Device: Kobo Libra 2	Libra 2 won't update properly after reimaging sd card Thanks to this forum I was able to unbrick my wife's libra2 by reimaging a new SD card. The device seems to work properly EXCEPT it gets stuck in an update loop if I connect to wifi. I can connect to pc to sync and it loads up books and acts like it gets an update but the SW revision level never changes (stuck at 4.32 from 4/14/22) I've manually kicked an update file over to the .kobo directory as per kobo instructions - no change. Also as last ditch I replaced the 3 directories with the original files from the old questionable SD card but no change. Other weirdness is the SN is Nooooooooooooooooooooo and it always forgets the WIFI password. It kinda works ok but if I try to sync by wifi it tries to grab an update and then gets loop stuck and never gets the book. any thoughts? thanks

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01-31-2026, 04:40 PM	#2
DNSB Bibliophagist Posts: 49,989 Karma: 178398936 Join Date: Jul 2010 Location: Vancouver Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos	The serial number is deliberately zeroed in the image. If you use a hex editor, you can find the serial number at 0x200. Some people have reported issues with updating in one step to the latest firmware. Check the firmware version you are currently on and try updating in steps (say, your current version is less than 4.33.19759, update to 4.33.19759, then to 4.37.21586 and then to 4.38.23171 before trying for the latest (currently 4.38.23552) version.

01-31-2026, 06:45 PM	#3
Old_Guy Junior Member Posts: 6 Karma: 10 Join Date: Jan 2026 Device: Kobo Libra 2	good thought. I grabbed 4.33.19608 from this nice page https://pgaskin.net/KoboStuff/kobofi...oogle_vignette but still stuck on 4.32... anyone hear of SD card compatibility issues? it loads books via usb ok so i doubt it but ...

01-31-2026, 06:53 PM	#4
Old_Guy Junior Member Posts: 6 Karma: 10 Join Date: Jan 2026 Device: Kobo Libra 2	BTW i used the rev_E.img since the board number ended in +6E0. should be correct thinks

01-31-2026, 09:30 PM	#5
Old_Guy Junior Member Posts: 6 Karma: 10 Join Date: Jan 2026 Device: Kobo Libra 2	I deleted all the partitions from the sd card and reimaged it a second time. update on reboot worked first time through. thanks so much for your help BR

01-31-2026, 09:34 PM	#6
DNSB Bibliophagist Posts: 49,989 Karma: 178398936 Join Date: Jul 2010 Location: Vancouver Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos	Great to hear you got the Libra 2 working properly. Other people have reported using the SD Association's SD Memory Card Formatter for Windows/Mac when they had errors while copying the image to the card.

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