Freezing, rebooting and other sudden problem can happen on any smartphone regardless of its brand and price.
If your smartphone freezes during a call, it is important to know how to get it back to working condition.
If your phone has a removable battery, the first step is to remove the battery and reinstall it. This will restart your device. After that, check if there is enough memory on your device. If the memory is full, clean it up by deleting unnecessary files and applications.
If your smartphone does not respond to reboot attempts, you need to perform a forced reboot by holding down the power button until the device turns off. After that, turn it back on.
If this does not help, try holding down the power button and the volume down button at the same time. This combination will reboot the system on Android devices.
Another reason for the freeze could be the SIM card, especially if the freeze only occurs during calls. Remove the SIM card, wait a few minutes, and insert it into the phone. This will allow the phone to re-register with the network and may solve the problem. If the card has been used for a long time or has been incorrectly cut, it should be replaced.
If the smartphone freezes when you are just trying to make a call and the device is unresponsive, it may simply be overloaded by open applications. Close all unnecessary tabs to free up RAM.
Frequently, freezes occur due to accumulated garbage, do not forget to clean your phone from unnecessary photos, applications and data that have accumulated in them, which you simply do not need.