Dell Inspiron 3521 CMOS Battery Replacement

Written By: Victoria Rivera
  • Comments: 9
Dell Inspiron 3521 CMOS Battery Replacement

Difficulty

Moderate

Steps

21

Time Required

30 - 45 minutes

Introduction

Access the motherboard to replace the CMOS battery if your computer is having issues tracking the date and time. It is recommended to wear an anti-static wrist strap to avoid damaging the electronic components of the computer.

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    • Make sure laptop is turned off and unplugged.

    • Turn over the laptop, and push in the clips to take out the battery.

    Dont wast you time for these steps because this model 3521 ,only 2nd step enough for remove cmos battery . Once remove the Surface Cover ,you can see the cmos battery .. no need to remove all the components .thanks me later .

    Stuff Srilanka -

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    • Remove the screws to take off the surface cover.

    • Make sure to keep small screws organized in Step 2 and all subsequent steps to make reassembly easier.

    Dont wast you time for these steps because this model 3521 ,only 2nd step enough for remove cmos battery . Once remove the Surface Cover ,you can see the cmos battery .. no need to remove all the components .thanks me later .

    Stuff Srilanka -

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    • Remove screws securing the hard drive

    • Remove hard drive by pulling on the tab to slide it out.

    Dont wast you time for these steps because this model 3521 ,only 2nd step enough for remove cmos battery . Once remove the Surface Cover ,you can see the cmos battery .. no need to remove all the components .thanks me later .

    Stuff Srilanka -

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    • Remove the memory card by pressing on the latches on either side.

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    • Remove the screws securing the optical drive, then slide out the optical drive.

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    • Remove all remaining screws on the back.

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    • Turn computer over and open it.

    • Carefully pry off keyboard using spudger.

    • Be careful not to damage ribbon cable while removing the keyboard.

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    • Remove the ribbon cable by pulling up on the tab where it is attached, then slide it out.

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    • Unplug the smaller ribbon cable by pulling up on the tab where it is attached, then slide it out.

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    • Unplug the motherboard cable by pulling up on the tab where it is attached, then slide it out.

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    • Remove all screws from palm rest

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    • Remove palm rest by carefully prying it off with a spudger.

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    • Unplug the white ribbon cable by pulling up on the tab where it is attached, then slide it out.

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    • Gently pull out the connecting cable.

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    • Unplug the black and white cables connected to the Wi-Fi chip.

    Dont wast you time for these steps because this model 3521 ,only 2nd step enough for remove cmos battery . Once remove the Surface Cover ,you can see the cmos battery .. no need to remove all the components .thanks me later .

    Stuff Srilanka -

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    • Disconnect screen by removing all remaining screws.

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    • Remove screws securing the Wi-Fi chip, then remove Wi-Fi chip.

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    • Locate and disconnect connecting cables on motherboard.

    Dont wast you time for these steps because this model 3521 ,only 2nd step enough for remove cmos battery . Once remove the Surface Cover ,you can see the cmos battery .. no need to remove all the components .thanks me later .

    Stuff Srilanka -

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    • Remove the remaining screws securing the motherboard to remove it.

    Dont wast you time for these steps because this model 3521 ,only 2nd step enough for remove cmos battery . Once remove the Surface Cover ,you can see the cmos battery .. no need to remove all the components .thanks me later .

    Stuff Srilanka -

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    • Flip over motherboard and locate CMOS battery

    • Pry off battery with spudger.

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    • Place new CMOS battery in motherboard.

    • Repeat all steps backwards to reassemble computer.

    Dont wast you time for these steps because this model 3521 ,only 2nd step enough for remove cmos battery . Once remove the Surface Cover ,you can see the cmos battery .. no need to remove all the components .thanks me later .

    Stuff Srilanka -

    Is the battery replacement required if the laptop doesn't detect the battery charging

    Vrunda Assar -

Conclusion

To reassemble your device, follow these instructions in reverse order.

Author

Victoria Rivera

Member since: 14/04/23

349 Reputation

One comment

Dont wast you time for these steps because this model 3521 ,only 2nd step enough for remove cmos battery . Once remove the Surface Cover ,you can see the cmos battery .. no need to remove all the components .thanks me later .

Stuff Srilanka -