After the latest software update, my z flip 4 in call speaker stopped working and the display screen turns blank black when folded, and when I unfold it doesn't give the display unless I press the side button several times.
We recommend trying the following troubleshooting steps:
1. Restart your device: Sometimes, a simple restart can resolve software glitches. Press and hold the power button, then select "Restart" from the menu.
2. Check for software updates: Ensure that your device has the latest software updates installed. Go to Settings > Software update > Download and install.
3. Clear cache partition: Clearing the cache partition can help resolve various software-related issues. To do this, turn off your device, then press and hold the volume up button and the side button simultaneously until the Samsung logo appears. Use the volume buttons to navigate to "Wipe cache partition" and press the side button to confirm. After the process is complete, reboot your device.
4. Factory reset: If the above steps don't resolve the issue, you may need to perform a factory reset. Make sure to back up your important data before proceeding, as this will erase all data on your device. To perform a factory reset, go to Settings > General management > Reset > Factory data reset.
