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Repair For MacBook Pro A1989 That Won't Turn On

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Repair For MacBook Pro A1989 That Won't Turn On: crwdns2935265:00crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Repair For MacBook Pro A1989 That Won't Turn On: crwdns2935265:00crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
  • Measure the power supply of the motherboard.

  • The measured voltage values are normal. It can be judged that the power supply circuit of the motherboard is good.

  • Next, we need to decide if the fault (voltage failing to increase) is caused by T2 chip data problems.

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