crwdns2936637:0crwdne2936637:0 crwdns2853008:0crwdne2853008:0 crwdns2918746:0crwdne2918746:0

crwdns2944351:0crwdnd2944351:0Sony Vaio PCG-4121GL Battery Replacementcrwdnd2944351:0crwdne2944351:0

crwdns2933797:0Bryce McNeilcrwdnd2933797:0crwdne2933797:0

crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 Bryce McNeil

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crwdns2933771:0crwdne2933771:0
crwdns2933801:0crwdne2933801:0
Introduction
This guide goes over how to replace the battery in the Sony Vaio PCG-4121GL (VPCSA3AFX).
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.