Texas Instruments TI-83 PLUS - Manual (Page 744)

TI-83 Plus General Information 741
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II. If the above solution does not work, reset all memory as
follows:
a. Remove one battery from the calculator and then press and
hold down the ‘ key while re-installing the battery. While
continuing to hold down the ‘ key, press and hold down
the É key. When the home screen is displayed, release the
keys.
b. Press y L to display the
MEMORY
menu.
c. Select 7:Reset to display the
RAM ARCHIVE ALL
menu.
d. Press ~ ~ to display the
ALL
menu.
e. Select 1:All Memory to display the
RESET MEMORY
menu.
f. To continue with the reset, select 2:Reset . The message MEM
cleared is displayed on the home screen.