crwdns2936637:0crwdne2936637:0 crwdns2853008:0crwdne2853008:0 crwdns2918746:0crwdne2918746:0

crwdns2933803:01crwdne2933803:0

crwdns2933797:0Daniel Maldonadocrwdnd2933797:0crwdne2933797:0

crwdns2936047:0crwdne2936047:0

crwdns2933769:0crwdne2933769:0
crwdns2933771:0crwdne2933771:0
crwdns2933801:0crwdne2933801:0

crwdns2933807:0crwdne2933807:0

+[* icon_note] Before removing the backup battery make sure your AA batteries are installed so that there is no loss of information.
[* yellow] Using a #00 Philip Screwdriver remove the 19mm screw located near the center of the back of the calculator on the panel with words "''Test Access''"