Causes:
1. Abnormal behavior of a third-party camera app.
2. Malfunctioning of the built-in camera app preventing camera switching.
3. Temporary system glitches.
4. Hardware issues with the camera itself.
Solutions:
Please follow the steps below to troubleshoot:
1. Test the Built-in Camera: Open the built-in camera app and attempt to switch between the front and rear cameras.
2. Clear App Data and Cache: Long press the camera app > App info > Storage usage > Clear data and cache to try again.
3. Restart the Device: For realme device whose factory system is a realme UI 2.0/realme UI 1.0/ realme UI R & Go & S Edition: Press and hold the power button for 10 seconds to restart the phone.
For realme device whose factory system is a realme UI 3.0/4.0/5.0 and realme UI T & U Edition: Long-pressing the power button and Volume + button, the shutdown and restart option will pop up.
4. Perform the diagnostic test:
realme UI 3.0 & above versions: Go to Phone Manager > Click on Tool at the Bottom right side of the screen or Tap on ︙ on the top right corner > Diagnostics > Select the Camera test and unselect the rest test if no any other issue > Run Diagnostics.
realme UI 2.0: Go to Phone Manager > Diagnostics > Continue > Select the Camera test and unselect the rest test if no any other issue > Run Diagnostics.
realme UI 1.0: Phone Manager > Quick Check start check > Select the Camera test and unselect the rest test if no any other issue > Run Diagnostics.
realme R & & T & S & Go Edition: Not supported
5. Please check and upgrade the system to the latest version.
If none of these solutions work, it is recommended that you back up your data and go to the nearest authorized realme service center for detection.