Phone frozen how to force restart it with a hard reset
Having a phone (or, most likely, smartphone) not responding, probably making noise that won’t stop until the non removable battery runs out of power ?
Do not panic, there is a simple solution, which is called power cycling, hard reset, hard reboot, force reboot, depending on the source.
Basically, it is equivalent to your computer’s reset button : by pressing a combination of keys for some time, a battery disconnection will be simulated, forcing your hardware to reset, emptying the phone’s memory, but NOT loosing any stored applications and saved data. Your phone will simply restart.
See below example for the following devices : Samsung Galaxy S7, Samsung Galaxy S6, Samsung Galaxy Note 5, Google Pixel, HTC Desire 626, iPhone 5, iPhone 7, iPad, iPod
1 – Android devices
Press Power + Volume down keys (it might be volume up on some devices) for 10 to 20 seconds.
The phone will then reboot automatically.
Example with a Samsung Galaxy S7 :

Example with a Samsung Galaxy S6 :

Example with a Samsung Galaxy Note 5 :

Example with a Google Pixel :

Example with HTC Desire 626 :

2 – iPhone, iPad, iPod devices
All Apple devices use the same combination to force a hard reboot : hold the power and home buttons.
Example for iPhone 5, iPhone 7, iPad, iPod :
