If after restarting the device, you still find your device freezes sometimes or is sometimes unresponsive, there are some actions you can try to help correct this symptom :
● You can create some memory space.
● You can even check for SW updates for your device.
● Check your device in “Safe mode”.
● Perform a Factory data reset of the device. Before performing the factory data reset, remember to make backup copies of all important data stored in the device.