Hardware button Issues - Volume-, Convenience- and Power button won't work reliably
Hello,
I recently bought a used Key2 on Amazon, which is optically in a very good condition.
But I soon noticed that the "volume up" button wouldn't work at all. The "volume down" button works fine.
I also noticed that the power button would not work sometimes. I watched this behaviour and after trial and error I found out, that the power button stops working whenever the phone locks itself, but when the phone locks itself again the power button will work again. It's like a switch. The weird thing is, that the simple press of the power button is not being recognized by the phone, but when I press the button twice, the camera opens normally, and when I hold the button for a long time, the phone turns off. That's why I think it might be a software issue.
and the third thing is that the convenience key dosn't work. I mapped it to the google assistant, but nothing happens when I press it.
Is anyone familiar with this behaviour or has any tips on what I could try? I don't want to return the phone for the price, that's why I ask here for help.
EDIT: I already tried resetting the phone via the settings
EDIT2: I just did a soft reset (by pressing and holding the virtual "restart" button) and the volume up keys are working again!! The only thing that is not working is the convenience key. it doesn't seem to be doing anything...
EDIT3: Seems like it was just a one time thing. after restarting, the buttons stopped working again and going into safe mode doesn't help anymore. weird.