Reference information
311
Resetting the HP 39gII
If the calculator “locks up” and seems to be stuck, you
must
reset
it. This is much like resetting a PC. It cancels
certain operations, restores certain conditions, and clears
temporary memory locations. However, it does
not
clear
stored data (variables, app databases, programs)
unless
you use the procedure below, “To erase all memory and
reset defaults”.
To reset
Press and hold
O
and
3
simultaneously, then
release them.
To erase all memory and reset defaults
If the calculator does not respond to the above resetting
procedures, you might need to restart it by erasing all of
memory.
You will lose everything you have stored.
All
factory-default settings are restored.
1. Press and hold
O
,
1
,and
6
simultaneously.
2. Release all keys in the reverse order.
If the calculator does not turn on
If the HP 39gII does not turn on, follow the steps below
until the calculator turns on. You may find that the
calculator turns on before you have completed the
procedure. If the calculator still does not turn on, please
contact Customer Support for further information.
1. Press and hold
O
for 10 seconds, then release.
2. Press and hold
O
and
3
simultaneously, then
release
3
, then release
O
.
3. Press and hold
O
,
1
,and
6
simultaneously. Release
6
, then release
1
,
and then release
O
.
Summary of Contents for 39gII
Page 1: ...HP 39gII graphing calculator user s guide Edition1 Part Number NW249 90001 ...
Page 2: ...Printing History Edition 1 November 201 1 ...
Page 32: ...22 Getting started ...
Page 58: ...48 Apps and their views ...
Page 70: ...60 Function app ...
Page 80: ...70 Solve app ...
Page 136: ...126 Polar app ...
Page 140: ...130 Sequence app ...
Page 148: ...138 Finance app ...
Page 152: ...142 Linear Solver app ...
Page 218: ...208 Matrices ...
Page 226: ...216 Notes and Info ...
Page 238: ...228 Variables and memory management ...
Page 318: ...308 Programming ...
Page 340: ...330 Reference information ...
Page 346: ...vi Product Regulatory Information ...