The smartphone itself may turn off due to problems the firmware or a specific application, the phone can also be a way to protect it from damage, said the Agency “Prime” Manager telecommunications Agency "Favicon" Roman Popov.
If this is the problem of firmware or application specific, in such a situation it is necessary to remove the last installed software or reset the phone to factory settings (in this case, you should backup your data).
Regardless of the model phone you can always improve its performance and increase the operating time without additional charge, said the Agency “Prime” Director General of ANO "Digital platform" Arseny Weltzin.
According to him, you must delete all applications that you do not use. "Sooner or later, they surf the Internet and send various reports, request updates, etc. By removing them, it will increase to 10%," - said the expert.