Hi @Анаст, I am sorry to hear about this. Your question has been translated to English as this is an International forum, please post any replies in English and it will be easier for me and other users to assist you. As there is no setting that you can adjust to improve the functionality of the power key in your phone, I would suggest that you get in contact with your local support team . They can help you to have your phone sent to an authorized service center to be examined and repaired If you have any questions regarding the service, such as routines, warranty and consumer laws, these type of questions are best answered by your local support team as well, as they vary between markets. Feel free to get back to me if you have further questions!
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