34  Getting Started
5. Insert the new battery, making sure that the positive sign (+) battery is 
facing outward.
6. Gently remove the other battery.
7. Insert the other new battery, making sure that the positive sign (+) battery 
is facing outward.
8. Replace the battery-compartment lid.
9. Press 
=.
10. If the calculator does not turn on, follow the procedures in the section 
titled, Determining if the Calculator Requires Service in Appendix A of the 
HP 10bII+ Financial Calculator User’s Guide.
Customer Care
In addition to the one year hardware warranty, your HP calculator also comes with one year 
of technical support. If you need assistance with warranty, please refer to the warranty infor-
mation on the product CD. HP customer care can be reached by either email or telephone. 
Before calling please locate the call center nearest you from the list provided. Have your 
proof of purchase and calculator serial number ready when you call. Telephone numbers are 
subject to change, and local and national telephone rates may apply. A complete list is 
available on the web at: www.hp.com/support
.
 
Table 1-37 Contact Information
Country/Region Contact Country/Region Contact
Algeria www.hp.com/support Anguila 1-800-711-2884
Antigua 1-800-711-2884 Argentina 0-800-555-5000
Aruba 800-8000; 
800-711-2884
Austria Österreich 01 360 277 1203
Bahamas 1-800-711-2884 Barbados 1-800-711-2884
Belgique (Français) 02 620 00 85 Belgium (English) 02 620 00 86
Bermuda 1-800-711-2884 Bolivia 800 -100 -193
Botswana www.hp.com/support Brazil Brasil 0-800-709-7751
British Virgin 
Islands
1-800 -711-2884 Bulgaria www.hp.com/support
Canada 800-HP-INVENT Cayman Island 1-800-711-2884