First, the phone is connected to the charger and plugged into the socket to see if it can be charged. If you can't charge, the current possible problems are: the charger is broken, the cable is broken, the phone interface is broken, the battery is broken, and the system is faulty.
Change a cable or change the charging plug, and then charge to see if it can rush into the electricity, if the rush into the electricity, it proves that this is the problem, change a cable, or change the charging plug. When the charging plug is changed, pay attention to the same parameters as the current and voltage of the original charging plug of your phone to prevent harm to the phone. If you can't rush, the possible problems are: mobile phone interface problems, battery problems, system problems
Remove the battery (can not be removed, don't forcibly grab it), use the universal charge to rush, if the charge is the problem of the mobile phone charging interface, if not, then continue to investigate, there may be a problem: battery, system.
Try to change the battery to see if it can be rushed into, if the battery can be charged, it is likely that the battery is scrapped. Just change the battery. If it doesn't, it's a system problem.
The mobile phone shows that it is charging but it cannot be charged. There are several possible reasons for this:
- Data cable damage or charging interface dust, oxidation, pin short circuit, gold finger damage, etc.
- The power cable of the battery is damaged or the water inlet system or battery of the mobile phone is faulty.
- The phone data cable and charging plug are damaged or in poor contact.
- The power management chip of the mobile phone fails and needs to be repaired after sale.