Thread: Glo How can I downgrade FW of my Kobo Glo?
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Old 08-01-2017, 08:30 PM   #2
DNSB
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Posts: 46,350
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Join Date: Jul 2010
Location: Vancouver
Device: Kobo Sage, Libra Colour, Lenovo M8 FHD, Paperwhite 4, Tolino epos
Quote:
Originally Posted by drjd View Post
After a wi-fi upgrade to FW 4.5.9587 my Glo(non HD) is not connecting to computer through USB. I can not read/write any file on it. It is rendered practically non-modifiable. Various attempts to connect it through different cables/computers have failed. Only charging the battery is possible. The device is working normally otherwise. Restarting the device many times also does not solve the issue. Did anyone else experience this connectivity problem?

I want to revert back to my earlier FW 3.19.5761, where my life was not that miserable. Please suggest me how can I go back or solve the connectivity issue? After a full day of chagrin I'm feeling a hopeless sense that the situation is so bad as to be impossible to deal with at my level. Please help!! I'll be highly thankful.
The first step is to factory reset your Glo which will wipe the internal storage. While it is factory resetting, downloading the 3.19.5761 firmware for it ( http://download.kobobooks.com/firmwa...-3.19.5761.zip ). Once the factory reset is finished, connect to your computer and use the Kobo desktop application to add your account, sync any Kobo purchased books and update firmware. After all this is done, close the Kobo desktop application without ejecting your Glo. Look on your Glo's internal storage and delete the following 3 items from the .kobo directory:

upgrades (directory)
KoboRoot.tgz (file)
manifest.md5sum (file)

Then copy the same 3 items from the .zip file you downloaded into the .kobo directory.

Disconnect and let the update run. You should now be on the 3.19.5761 release. Patch your Kobo including the "Block WiFi firmware upgrade" patch. If you use the Kobo desktop application and it updates your firmware, simply delete the directory and two files before ejecting your Glo. I would suggest disabling WiFi (I've never tested the block firmware upgrade patch) and not using the Kobo desktop application which will require that you download and sideload your books -- preferably using Calibre.
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