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If the Canon PowerShot G9 displays a card error "write locked", it could be simply the switch in the SD-card slot not working.

  • Good eyesight and a steady hand is necessary to complete this.
  • Be especially careful not to rupture any of the flex cables.
  • Work slowly
  • Keep the screws sorted, they have different sizes
  1. Be very careful not to touch any charged flash capacitor. Remove screws as marked. 2 for strap holder, 5 for back cover
    • Be very careful not to touch any charged flash capacitor.

    • Remove screws as marked. 2 for strap holder, 5 for back cover

    • Remove Back cover and strap holder

  2. Remove the two screws circled green Remove the buttons
    • Remove the two screws circled green

    • Remove the buttons

  3. Disconnect ribbon cable by lifting up flap Disconnect other cable (another flap) Remove jog dial unit
    • Disconnect ribbon cable by lifting up flap

    • Disconnect other cable (another flap)

    • Remove jog dial unit

  4. Android Tamir Setleri

    Yeni bir ekran veya pil, bir tamir kiti kadar yakınında.

    Hemen Alışveriş Yapın

    Android Tamir Setleri

    Yeni bir ekran veya pil, bir tamir kiti kadar yakınında.

    Hemen Alışveriş Yapın
  5. Remove the one screw circled green Remove the finder dial
    • Remove the one screw circled green

    • Remove the finder dial

  6. Remove screw and lift LCD upwards very carefully. Do not put any strain on cables Carefully remove flex cables. The left has a flap that needs to be opened (up), the right just needs to be pulled out. Be careful when re-inserting the right one, you can easily damage the fragile cable. Remove the LCD
    • Remove screw and lift LCD upwards very carefully. Do not put any strain on cables

    • Carefully remove flex cables. The left has a flap that needs to be opened (up), the right just needs to be pulled out. Be careful when re-inserting the right one, you can easily damage the fragile cable.

    • Remove the LCD

  7. Remove screws Disconnect connectors for Lens assembly Carefully disconnect the tiny cable
    • Remove screws

    • Disconnect connectors for Lens assembly

    • Carefully disconnect the tiny cable

    • Next step is removing the PCB. I made the mistake not to take care about the battery compartment switch. If you are not careful, the black lever will break off. Not a problem though, because then the camera will work also with opened battery compartmen

    • Remove main PCB by slightly bending outward the cover for the jack with fingernail. Now lift the PCB slightly upwards.

    • Look under the PCB, there is a connector that needs to be separated by means of a small screwdriver or spudger.

    • Re-attaching the connector is not easy. I used a small screwdriver to carefully press the connector back in place.

    • This is not the official method to do this. Normally the Top cover and several other parts need to be removed too.

  8. Measure continuity with a multimeter on SD-card slot write protect switch If it is not working, short the two points with a bodge wire, so write lock is disabled
    • Measure continuity with a multimeter on SD-card slot write protect switch

    • If it is not working, short the two points with a bodge wire, so write lock is disabled

    • Another possible fault is a broken soldering joint holding the case of the SD-card reader in place.

Sonuç

Repeat the steps in order to reassemble your device.

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Thomas Widmaier

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