[Suffolk Punch]

Thanks all.

Here's what I think I need to do to revert from firmware version 'Y' to an earlier version 'X'. Does it look ok?

1. Perform a factory reset (running version 'Y').
   In my case this will return the ClaraHD to the version 4.8.10959 (3e8cac4976 4/19/18) it came with.
2. Start the kobo desktop app and sign-in to your kobo account.
3. Open a browser, and open the URL of Kobo Firmware Downloads: https://pgaskin.net/KoboStuff/kobofirmware.html
4. Download firmware version 'X' - a zip archive containing a KoboRoot.tgz file, manifest.md5sum file, and upgrade folder.
5. Connect your reader to the PC via a USB cable.
6. Click sync in the kobo desktop app. It will download the latest firmware (KoboRoot.tgz file, manifest.md5sum file, and upgrade folder) to the .kobo folder on the reader.
7. Close the Kobo desktop app.
8. ** Leave the reader plugged-in to the PC, because when you eject it, the reader will automatically apply the firmware updates.**
9. Now copy the KoboRoot.tgz file, manifest.md5sum file, and upgrade folder extracted from firmware version 'X' into the reader's .kobo folder - over-writing what the kobo desktop app just did.
10. Eject the reader. Upgrade to firmware version 'X' will start.
11. Reapply any tweaks (e.g. Replace the 'Annotations' folder by a file called 'Annotations').

Martin