1. Try to restart the phone.
2. Check whether the third-party battery software is installed and try to uninstall it.
3. Back up data (contacts, text messages, photos, etc. ) and try to restore the factory settings.
4. If the problem still exists, it is recommended that you take your mobile phone, purchase invoice and maintenance card to the local Samsung after-sales service center for testing. The address information/customer service telephone number of Samsung Service Center can be inquired in the following ways: Please visit the page of Samsung official website Service Center-select the product you want to inquire and search in your province and city.