The mobile phone motherboard is the main circuit board in the mobile phone

There are three main parts on the mobile phone motherboard:
1. Baseband part
Baseband chip and power management chip: responsible for coding
2. RF part
RF processor and RF power amplifier: responsible for sending and receiving signals
3. Other parts
CPU memory various controllers (touch screen Bluetooth WIFI sensor, etc.). There are also some microphone, earpiece, speaker, camera, display screen interface, etc
These things are welded on a circuit board, the whole board is called mobile phone motherboard.
Functions of mobile phone motherboard:
Integrated mobile operation management. Extension:
There is also a flat cable coexisting with the mobile phone motherboard. After you open the phone, you can see the orange light and black lines at the bottom of the screen.
The reason why the main board of the mobile phone is broken:
1. The first major reason for the failure of the mobile phone motherboard is liquid ingress: including the mobile phone falling into water and accidentally falling into other liquids;
2. Use mobile phones in extreme environments;
3. Electrostatic breakdown of mainboard components;
4. Accidental fall;
5. The transient current of the main board increases, which is mainly caused by battery short circuit and other faults;
6. Use a mismatched charger.