How To Fix Bad Checksum Error, RTC Battery Low, Set Date & Time, 0251

If your getting a Bad Checksum error, RTC Battery Low, Set Date and Time, or 0251 errors on your Lenovo laptop, use this video to see how to troubleshoot it and then fix it.
If you get this error a lot or if your Date & Time settings always seem to be wrong, it could be a sign that your CMOS Battery needs to be replaced. See how to access and replace that component here;
   • How To BIOS Reset Lenovo Computer / R...  . Check out the FAQ's and Related Video Links below !!

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