We are sorry to hear about your experience with the recent updates on your Samsung Galaxy A11 having issues with the unresponsive touch screen, and we apologize for the inconvenience it caused you.
If I have similar issues with my device, as I expect it to get better after an update, then I will be irritated too.
But don't fret; we are here to guide, assist, and offer solutions to restore your device to optimum performance.
Step 2. Press and hold the Volume Up key and the power button.
Step 3. When the Android logo displays, release all keys.
Step 4. Press the Volume down key to navigate and select "Wipe cache partition".
Step 5. Press Power key to select. When the wipe cache partition is complete, Select Reboot System.
Step 6. Press the Power key to restart the device.
If that doesn't fix the problem, you may submit an error report through the Samsung Members app as follows:
Step 1. Long press Samsung Members icon on Apps screen and tap Error reports.
Step 2. Tap OK on agreement popup to send system log data.
Step 3. Select Symptom category "Sensor/Touch".
Step 4. Describe the problem in details and SEND.
If the issue persists, you may bring your device to the nearest Samsung Authorized Service Center in your area.
or book an appointment with the Samsung Members app as follows:
Support > Book an appointment to set one.
Should you need further assistance and guidance, you may contact us via our online Samsung Customer Care support channels below.