HP Laptop CMOS Reset 502 Error Checksum is Invalid

CMOS Reset 502 - Checksum invalid. More likely the main battery is dead. Not holding charge. Please visit my Amazon Shop: We list the items, tools and promotional products on the website that we used in this video. *** For America Shopper ** Where to buy battery replacement HT03XL battery ? Or try Ebay if Amazon does not ship. Tools Kit Screwdrivers: ------------------------------------- *** For UK Shopper ** Where to buy battery replacement HT03XL battery ? Or try Ebay if Amazon does not ship. Tools Kit Screwdrivers: ----------------------------------------------------------------------------------------------- If this video is helpful or helped you, it will be nice to have a cup of coffee. Appreciation support to UberGeeks via PayPal: Subscribe to our channel for all our latest videos! Follow us on Facebook: Follow us on Instagram: Links included in this description might be affiliate links. If you purchase a product or service with the links that I provide I may...