Device

• The photos taken by the front camera are inverted.
• A car is connected to a mobile phone through a USB. Why can't the music or videos in the mobile phone be played through the car?
• Enables or disables the SIM card.
• Whether mobile phones purchased through other channels can purchase the extension warranty service?
• What are the differences between the common screen and the 2.5D/3D screen?
• The search function is triggered when the screen is pulled down, and the notification bar is also triggered when the phone is pulled down from the receiver
• Red and blue spots appear on the screen against a black background.
• When a toughened film is pasted on the screen, is there any gap between the edges?