Hi
@kuvarin ,
Please remember to keep your posts in English so other users can join the discussion.
Regarding your issue could you please share further details?
Confirm your current firmware version.
If you are on the latest 18.0840.2112.210, the I will recommend you to perform a "Factory reset" (keep in mind to back up your data before)
You can try taking the vibration test by opening calculator .12345+= -> single test -> vibration test
Hardware test should pass all steps. if it fails it might be something to do with hardware.
If nothing work, then I would recommend you to visit the nearest service center.
