Hello everyone!
Some strange thing happened...
I did a factory reset of my Kobo Aura H2O, after which I have updated the device to 3.15 (from the implicit 3.7 version) and then switched to 3.17. Everything was fine.
While updating the Pocket content following the factory reset, I have tried to set a different brightness level, at which moment, the device froze (picture attached).
No attempts at powering off the device or resetting it using the paperclip has been succesful. Trying to connect it to the PC has also proved unsuccessful. Weird...I have the device from almost a year and did not have any problems, until now. Any ideas how to go on from here?
Thank you all!