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Learn how to force-reset BIOS settings and replace the CMOS battery on an Alienware 15 R4 laptop to fix date/time and CMOS battery failure errors. Buy tools on AMAZON: BIOS battery: https://hfixt.com/bios Screwdriver Set: https://hfixt.com/spro Tool Kit: https://hfixt.com/pryt Tweezers: https://hfixt.com/tzrs Magnetic Mat: https://hfixt.com/mat ...
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