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iPhone 6 Plus can not be charged, brush machine error – 1 repair
Machine model: iPhone 6 Plus
Malfunction: the mobile phone can’t be charged, and Update System reported an error -1.
iPhone 6 Plus can not be charged, brush machine error – 1 repair Figure 1.
Fault analysis:Update System reported error -1 The fault lies in Baseband circuit or Baseband Baseband.
Maintenance process: when shielding cover is disassembled,Baseband power supply and charging IC have traces of water damage corrode.
iPhone 6 Plus can not be charged, brush machine error – 1 repair figure 2.
After cleaning the motherboard, replace the Baseband power supply and charging IC, and then Update System passes again, but it can’t be charged after startup. Inserting lighting cable prompts that this accessory is not supported.
According to past maintenance experience, this failure is caused by the lack of VCC condition in USB chip. When detecting the working conditions of USB, it was found that PP_TRISTAR_PIN VCC did not have VCC, which was converted from Q1701. Disassemble Q1701 and find that PAD is serious corrode, and directly connect 2 pin and 3 pin short-circuit of Q1701.
iPhone 6 Plus can not be charged, brush machine error – 1 repair Figure 3.
Into the system test charging is normal, test other functions without exception, maintenance is over.
iPhone 6 Plus can not be charged, brush machine error – 1 repair Figure 4.
