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Inleiding

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. Remove the one screw circled green. Remove the finder dial
    • Remove the one screw circled green.

    • Remove the finder dial

  5. 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

  6. 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.

  7. 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.

Conclusie

Repeat the steps in order to reassemble your device.

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Thomas Widmaier

Lid sinds: 05-03-13

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