There are some special codes used in the diagnoses of mobile phones to identify it's faults and repair the mobile phone easily.Some of the faults in some mobile phones such as Android, IPhone, Windows Phones are either
Software
Hardware
SOFTWARE
If it is software faults or malfunctioning, the software can be reinstall or upgraded if need be. Some software algorithms installed in phone can be corrupted after and extended periods of use and time.
The mobile phone apps may be attacked by viruses, malwares or Trojan horse virus which leads to mobile phone malfunctioning.
HARDWARE
Hardware faults in mobile phone can also be traced and identified using testing metre reader.
Some of the mobile phone hardware components which can malfunction or got damaged after an extended period of time and use include : ear piece, mouth piece, integrated circuits (IC), Screen, Battery etc.
All these mobile phone parts are replaceable.
It is a good thing to replace a faulty mobile phone component parts with the corresponding rated parts.
Care and caution some be taken to ensure that water and extreme heat do not enter inside the mobile phone.
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