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zll

zll

  • Joined: 2021-11-01
  • Articles: 531

Glory 50 does not charge

荣耀50不充电
Disassemble the machine first for testing, and the measuring switch tube 5V is also normal, considering that mobile phone I have fallen, so let's try to short-circuit the switch tube first. If the fault remains after short-circuiting the switch tube, then give priority to whether there is virtual welding of the charging inductor. The specific maintenance process is as follows:

Apple iPad7 A2197 does not turn on

iPad7 A2197不开机 2
IPad7 A2197 customer said that it would not be turned on when it was used, and directly removed the ammeter on the motherboard to see the current, and found that the standby current was normal. After triggering, the current was only 22mA. After looking at the CPU model, it was found that it was the commonly used A10 CPU. This CPU caused quite a lot of iPad with small current, which was a common problem, so the CPU was directly redone.