The various factors can cause the issue of an unresponsive Android phone system as below:
1. The system will become slow or unresponsive when the phone's memory or processor resources are insufficient. This can be caused by having too many applications running at the same time, or having some applications that are taking up too many system resources;
2. System unresponsiveness is sometimes caused by compatibility issues with installed applications or unstable applications;
3. The Android system itself has some errors or issues, such as failed system updates or corrupted system files, causing the system no response.
To resolve the issue of an unresponsive Android phone system, you can try the following methods:
1. Free up system resources by closing some unnecessary applications;
2. Restarting the phone can often resolve temporary system issues;
3. You can update or uninstall applications that will cause conflicts;
4. Update the system to the latest version.