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IPhone XS Freezes When Last Digit of Pin Code is Entered

From Repair Wiki
IPhone XS Freezes When Last Digit of Pin Code is Entered
Device IPhone XS, IPhone XS Max
Affects part(s) Motherboard
Needs equipment
Difficulty ◉◉◉◌ Hard
Type Soldering


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Symptoms

  • Phone boots fine
  • Type in your pin code & at the last digit, it freezes, keeping that digit highlighted for about 30-60 seconds
  • Then the screen restarts and you're back at the pin code screen.

Solution

  • Usually it's a sandwich issue, so follow the above "No Touch" steps to solve the problem
    • Sandwich reball
    • Or Bottom Board Swap
  • If you do a bottom board swap, without transferring the original NFC, the phone will go through a "swipe to recover" screen in most cases, where you put in the pin code, it loads a white "Attempting Data Recovery" screen & takes about 10-20 minutes.
  • This is basically the operating system rewriting the NFC chip, so it can unlock.
  • Then, the phone will work fine afterwards


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