China Top 10 Phone Screen Factory 

Teach you how to repair iPhone 5 battery display inaccurate fault

by:YoukingTech     2021-08-27
Posted on 05.09 After the machine was dropped once, the battery display was inaccurate, and the charging was abnormal. I had no choice but to use it for repair. Method/Steps Failure analysis: The iPhone has a battery inaccuracy problem. Generally, the battery detection circuit or the charging circuit is faulty. It is enough to check the two parts of the circuit during maintenance. 1 Troubleshooting: Remove the battery of the mobile phone and observe the peripheral components of the battery interface J6. It is found that one end of FL11 has fallen off. After re-soldering, the power-on circuit shows normal. The position of FL 11 is shown in Figure 1. 2 As can be seen from the iPhone 5 mobile phone schematic diagram, FL11 is a power detection signal circuit component. If FL 11 is open, the battery power detection signal BATTERY SWI cannot be sent to the application processor and power management circuit. There will be a problem of inaccurate battery display. The schematic diagram of the iPhone 5 mobile phone battery interface is shown in Figure 2. 3
Custom message
Chat Online
Chat Online
Chat Online inputting...
Sign in with: