I just borrowed a CFX 9800G from my dad for my algebra class, and tried to replace the batteries. I followed the instructions, but when I finished inserting the new batteries my calculator screen came on and was frozen. The only working button is the Reset on the back, but when I push the button the screen lights up with ***Reset All Memories*** Yes or No and neither can be selected using the function buttons. I have some knowledge of Basic coding. Any help would definitely be appreciated as I would prefer not to have to buy one.
