Okay, so this is the process I followed on my tolino Vision Colour, based on the instructions in
https://www.mobileread.com/forums/sh...postcount=176:- On https://mytolino.de/software-updates-tolino-ereader/, grab the tolino-qt6-recovery-5.0.175773 update.tar (Kobo 12 for the tolino Shine Color) and tolino-qt6-update-5.1.186250 update.tar (Kobo 11 for the tolino Vision Color)
- Connect the reader to your PC (confirm the connection when the reader prompts you to) and place the recovery update.tar inside the ".kobo" directory. Then eject the reader, disconnect the USB cable and wait for the reader to reboot.
- Enable developer mode (enter "devmodeon" into the reader's search box), then open the settings and search for the "Change to Kobo" setting.
(For me, the developer settings popped right up after enabling the developer mode. Not sure if this is intentional.)
- Activate your "Kobo" device as prompted by the reader.
- Connect the reader to your PC as before, this time use the update update.tar. Copy file, eject, disconnect, and wait for the reboot.
Changing to Kobo mode resets the device and removes all data. Also, this did not enable me to install NickelMenu or the likes, unfortunately.