Q：Why doesn't the touchscreen work when I slide to unlock?
A：1. If this happens when answering a call, it may be due to an incoming call while the device is in your pocket, triggering the touchscreen's accidental touch prevention. Press the power button to lock the screen and then turn it back on to restore normal operation.
2. Check the screen for oil or sweaty fingers that could cause touchscreen malfunction.
3. If this happens while charging, check if the device is overheating and causing a freeze, and whether a standard charger is being used. Unplug the charger before using the device.
