I'm sorry to hear that you dropped your phone. To check for internal damage, you can perform a few simple checks:
External Inspection: First, carefully examine the external components of the phone, such as the screen, body, and buttons. Look for any visible cracks, dents, or abnormalities.
Screen Test: Turn on the phone and check the screen for any unusual lines, discolorations, or flickering. A damaged screen might exhibit these issues.
Touchscreen and Buttons: Test all the touchscreen functionalities and physical buttons to see if they are responding correctly. Look for any unresponsive areas on the screen or buttons that are not functioning as they should.
Camera and Sensors: Try using the camera, both front and back, and check if they are capturing images correctly. Also, verify that other sensors like the proximity sensor or gyroscope are functioning as intended.
Call Functionality: Make a test call to check if the earpiece speaker and microphone are working properly.
Battery Performance: Observe the battery life and see if it drains faster than usual or takes longer to charge.
Connectivity: Test Wi-Fi, cellular data, Bluetooth, and GPS to ensure they are all functioning correctly.
Overheating: Monitor the device for excessive heating during regular use.
If you notice any unusual behavior or abnormalities during these checks, it's possible that there is internal damage to your phone. In such cases, it's best to take your phone to an authorized service center or a qualified technician for a thorough inspection and repair.
Additionally, if your phone is covered by a warranty or insurance, consider contacting the manufacturer or your insurance provider to explore your options for repair or replacement.