Glo Memory Upgrade Mod Guide (With Pictures) - Page 25

Lucjan · 09-18-2025, 04:59 AM

I have one important question
As a new card did You use SDXC or SDHC?

DNSB · 09-18-2025, 12:59 PM

For the most part, I've used SDHC (up to 32GB). In my Clara HD, I installed a 128GB SDXC card and it worked. The only issue I ran into was when I placed so many ebooks on the Clara HD, that the database size became too large to be kept in memory which slowed searches and other database activities down.

Anno50 · 09-25-2025, 02:43 AM

i succesfully fixed the kobo, but now it is in an update loop. It keeps downloading updates, and again and again... is there anything i can do , to fix this problem?

Lucjan · 09-26-2025, 02:03 PM

I tried to put serial number into image that I get and used HxD for that
I delete the 000000000 from line 200 and enter the serial from my kobo
After that save the changes
But when I try to save that image on SD card I have error: A write error occured during processing
Is there any other possibility to put my correct serial number into the image?

Lucjan · 09-26-2025, 02:35 PM

Quote:

Originally Posted by Anno50

i succesfully fixed the kobo, but now it is in an update loop. It keeps downloading updates, and again and again... is there anything i can do , to fix this problem?

Try to ask for img for Your Kobo here https://www.mobileread.com/forums/sh...d.php?t=355778
Put out Your old SD, buy new one and save the image that You get on the new SD

DNSB · 09-27-2025, 09:05 PM

Quote:

Originally Posted by Lucjan

I tried to put serial number into image that I get and used HxD for that
I delete the 000000000 from line 200 and enter the serial from my kobo
After that save the changes
But when I try to save that image on SD card I have error: A write error occured during processing
Is there any other possibility to put my correct serial number into the image?

Does the write work without trying to change the serial number? Otherwise, it sounds like an issue with the µSD card you are trying to write to. You may want to try re-formatting it with the SD Memory Card Formatter for Windows/Mac.

Anno50 · 09-28-2025, 11:21 AM

deleted

Anno50 · 09-28-2025, 11:26 AM

Quote:

Originally Posted by Lucjan

Try to ask for img for Your Kobo here https://www.mobileread.com/forums/sh...d.php?t=355778
Put out Your old SD, buy new one and save the image that You get on the new SD

I did this, but it came in a sort of update loop

PeterT · 09-28-2025, 02:52 PM

Quote:

Originally Posted by Anno50

I did this, but it came in a sort of update loop

Did you use the original or a new SD card?

Did you download the correct zip file, expand it and then copy ALL the contents to the Kobo (ie the upgrade folder, the KoboRoot.tgz fileand the manifest.md5sum) (meaning you should see in the .kobo folder on the device the upgrade folder along with the KoboRoot.tgz and the manifest.md5sum file).

Lucjan · 09-29-2025, 04:10 PM

Quote:

Originally Posted by DNSB

Does the write work without trying to change the serial number? Otherwise, it sounds like an issue with the µSD card you are trying to write to. You may want to try re-formatting it with the SD Memory Card Formatter for Windows/Mac.

The SD is fine because when I use the IMG from You there is not occur any error
The error Is only when I change the serial

PeterT · 09-29-2025, 04:41 PM

That makes me think you're not changing the correct location.

BananusRex · 10-07-2025, 07:24 AM

I got the image in a PM from the "Kobo µSD Card Image Requests"-thread as my colleagues Kobo Libra 2 had been bricked in a official firmware upgrade, the only snag was that I could not write to the new SD-card with the USB Duplicator Image Writer but I solved it with the Rufus USB-tool to create a bootable USB-media.

That done, I popped the fixed mSD-card into the reader and the reader was unresponsive and the LED didn't blink as it did before, I popped in the corrupted card again, I got the charging light blinking again swapped to the new card again, did the factory reset-thing by holding power and one of the buttons and voila: it's living again and my colleague saved $300 by buying a $9 mSD-card and a lot of help form this forum!

I did not change the size as my colleague buys her books from the Kobo store so I didn't wanna risk changing too much but I dabbled with the MiniTool Partition Wizard and it seemed as easy as the guide says.

JesusArmy · 10-07-2025, 10:33 AM

Hello,

Just to reports that I have successfully revived my Kobo Clara 2E N506 thanks to DNSB's image !

The curious part, was that on my kobo there was glue inside on each internal connector and the Micro SD card. So I have destroyed the card holder to remove it, but the new one is hold in place with some tape and a few millimeters of soft foam positioned on top of the card, pushing it toward the SD connectors by the back cover.

Seems to do the job, but it is clearly not nice from kobo to glue these things just to prevent repairs...

DNSB · 10-07-2025, 03:05 PM

Quote:

Originally Posted by JesusArmy

Seems to do the job, but it is clearly not nice from kobo to glue these things just to prevent repairs...

Actually, that is not glue. It is the HZO conformal coating which waterproofs the ereader.

JesusArmy · 10-09-2025, 10:29 AM

Oh right. Next time I will think about it when buying a waterproof device! That does makes repairs very difficult ! :/

09-28-2025, 11:21 AM	#367
Anno50 Junior Member Posts: 4 Karma: 10 Join Date: Aug 2025 Device: kobo libra 2	deleted Last edited by Anno50; 09-28-2025 at 11:25 AM.

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09-18-2025, 04:59 AM	#361
Lucjan Junior Member Posts: 6 Karma: 10 Join Date: Sep 2025 Location: Lublin Device: Libra 2, Colour, Elipsa, Sage	I have one important question As a new card did You use SDXC or SDHC?

09-18-2025, 12:59 PM	#362
DNSB Bibliophagist Posts: 47,798 Karma: 172313956 Join Date: Jul 2010 Location: Vancouver Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos	For the most part, I've used SDHC (up to 32GB). In my Clara HD, I installed a 128GB SDXC card and it worked. The only issue I ran into was when I placed so many ebooks on the Clara HD, that the database size became too large to be kept in memory which slowed searches and other database activities down.

09-25-2025, 02:43 AM	#363
Anno50 Junior Member Posts: 4 Karma: 10 Join Date: Aug 2025 Device: kobo libra 2	i succesfully fixed the kobo, but now it is in an update loop. It keeps downloading updates, and again and again... is there anything i can do , to fix this problem?

09-26-2025, 02:03 PM	#364
Lucjan Junior Member Posts: 6 Karma: 10 Join Date: Sep 2025 Location: Lublin Device: Libra 2, Colour, Elipsa, Sage	I tried to put serial number into image that I get and used HxD for that I delete the 000000000 from line 200 and enter the serial from my kobo After that save the changes But when I try to save that image on SD card I have error: A write error occured during processing Is there any other possibility to put my correct serial number into the image?

09-29-2025, 04:41 PM	#371
PeterT Grand Sorcerer Posts: 13,664 Karma: 79983758 Join Date: Nov 2007 Location: Toronto Device: Libra H2O, Libra Colour	That makes me think you're not changing the correct location.

10-07-2025, 07:24 AM	#372
BananusRex Junior Member Posts: 2 Karma: 10 Join Date: Oct 2025 Location: Sweden Device: Kobo Aura N236	I got the image in a PM from the "Kobo µSD Card Image Requests"-thread as my colleagues Kobo Libra 2 had been bricked in a official firmware upgrade, the only snag was that I could not write to the new SD-card with the USB Duplicator Image Writer but I solved it with the Rufus USB-tool to create a bootable USB-media. That done, I popped the fixed mSD-card into the reader and the reader was unresponsive and the LED didn't blink as it did before, I popped in the corrupted card again, I got the charging light blinking again swapped to the new card again, did the factory reset-thing by holding power and one of the buttons and voila: it's living again and my colleague saved $300 by buying a $9 mSD-card and a lot of help form this forum! I did not change the size as my colleague buys her books from the Kobo store so I didn't wanna risk changing too much but I dabbled with the MiniTool Partition Wizard and it seemed as easy as the guide says.

10-07-2025, 10:33 AM	#373
JesusArmy Junior Member Posts: 5 Karma: 10 Join Date: Oct 2025 Device: Kobo Clara 2E N506	Hello, Just to reports that I have successfully revived my Kobo Clara 2E N506 thanks to DNSB's image ! The curious part, was that on my kobo there was glue inside on each internal connector and the Micro SD card. So I have destroyed the card holder to remove it, but the new one is hold in place with some tape and a few millimeters of soft foam positioned on top of the card, pushing it toward the SD connectors by the back cover. Seems to do the job, but it is clearly not nice from kobo to glue these things just to prevent repairs...

10-09-2025, 10:29 AM	#375
JesusArmy Junior Member Posts: 5 Karma: 10 Join Date: Oct 2025 Device: Kobo Clara 2E N506	Oh right. Next time I will think about it when buying a waterproof device! That does makes repairs very difficult ! :/