Hi everyone,
I ask the forum for help because I'm a little desperate!

I'll try to explain my problem. My device has been working well until a few days ago.
When the device is turned off the power button does not work and only turns on if I connect it to the PC or to the electricity. It has a extrange behaviour, it turns on and off by itself, without following a specific pattern, without any interaction of mine. For example, at night it can turn on and off 20 times or more when i'm sleeping.
The strange thing is that sometimes when it has just been turned on I can turn it off using the power button, but not always, the normal thing is that the button does not react when I slide it.
I have chaned the sd card (I have used a new one) with a good Kobo Glo image, i have tried to downgrade the firmaware but the behaviour is the same.
Currently, I can't use my ebook because it's uncontrollable.
Do you think the problem is software or hardware? Has anyone had the same thing and managed to solve it?
Just getting the device did not turn off I would be happy, even if the power button does not work.
I am sorry for the inconvenience and would greatly appreciate any help!
Thank you in advance.