Sony Vaio PCG-4121GL Battery Replacement

Introduction

If your laptop is not powering on or is not holding a charge, a faulty battery could be the issue. Before starting this guide, it may be helpful to have a secure place to put the screws after they have been removed.

What you need

Step 1 Battery

Sony Vaio PCG-4121GL Battery Replacement, Battery: step 1, image 1 of 2

Sony Vaio PCG-4121GL Battery Replacement, Battery: step 1, image 2 of 2

Remove the two 3mm Phillips #0 screws on the bottom of the computer that secure the plastic backing.

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Step 2

Sony Vaio PCG-4121GL Battery Replacement: step 2, image 3 of 3

Pull the bottom plate towards yourself until it unhinges fully.
Once the plate is free from the backing remove it completely.

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Step 3

Look for the blue tab that is located to the bottom left of the battery.

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Step 4

Sony Vaio PCG-4121GL Battery Replacement: step 4, image 3 of 3

Pull the blue tab towards yourself until you hear a click.
Once the blue tab is released, pull up on the battery.
Once the battery can move freely, take it out completely.
It may be helpful to have a spudger to make it easier to release the blue tab.

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Conclusion

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

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Sony Vaio PCG-4121GL Battery Replacement

Introduction

What you need

Step 1 Battery

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Step 2

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Step 3

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Step 4

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Author

McKinley Hubred

Team

Cal Poly, Team S2-G2, White Winter 2019 Member of Cal Poly, Team S2-G2, White Winter 2019

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