How to Fix Bad Checksum, RTC Battery Low, 0251, Set Date and Time Error - ACER

Use this video to address the errors; Bad Checksum, RTC Battery, 0251, Set Date and Time, etc.
If the error comes back, it means that your CMOS Battery may be going bad. So your motherboard is loosing power every time the computer turns off and, in effect, is getting a BIOS Reset. If that is the case, leave your computer on for several days so your CMOS Battery has time to recharge. If that does not work, then replace the CMOS Battery as seen here;    • How To BIOS Reset Asus Laptop Compute...  . Check out the FAQ's and Related Video Links below !!

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