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Introduzione

iPhone cameras keep shaking when taking photos? iOS update can't help at all? Well, check our repair guide today for detailed steps on how to diagnose and fix iPhone 7 rear camera won't stop shaking problem.

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  1. Tap on the camera app on the homescreen. The rear camera keeps shaking and won't focus. Switch to the front camera. The front camera works normally.
    • Tap on the camera app on the homescreen. The rear camera keeps shaking and won't focus. Switch to the front camera. The front camera works normally.

    • Attach a magnet to the camera holder ring. The rear camera stops shaking. Move the magnet away. The rear camera starts to shake immediately.

    • We can confirm that the rear camera circuit has malfunctioned.

  2. The first thing we do is to check the rear camera connector J4501. Run diode mode measurement of J4501.
    • The first thing we do is to check the rear camera connector J4501. Run diode mode measurement of J4501.

    • The measured value of Pin 16 is 0, which is abnormal. Judging by this, relevant circuits of Pin 16 have shorted.

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  4. Locate relevant circuits of Pin 16 on the bitmap software - Refox.
    • Locate relevant circuits of Pin 16 on the bitmap software - Refox.

    • Since there are multiple filter capacitors on the circuit, we can locate the faulty component with ‘rosin detecting’ method.

    • First, smoke rosin on relevant components of the circuit. Then, set voltage of the DC Power Supply to 2.8V. With the black probe contacting a GND connection on the logic board, contact the red probe to Pin 2 of FL2502.

    • Rosin on C2519 melts immediately. Judging by this, C2519 is damaged.

  5. Since C2519 is a filter capacitor, we can simply detach it from the board.
    • Since C2519 is a filter capacitor, we can simply detach it from the board.

    • Once done, run diode mode measurement of the bonding pad of C2519. The measured value is normal.

  6. Get the logic board and display assembly installed. Connect the battery and press the power button. The phone turns on normally.
    • Get the logic board and display assembly installed. Connect the battery and press the power button. The phone turns on normally.

    • Tap on the camera app on the home screen. The rear camera stops shaking. Switch to the front camera and the front camera works normally.

    • Switch back to the rear camera and take a picture. Check the photo taken. All going well.

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Phryne

Membro da: 17/11/2019

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