Texas Instruments TINSPIRE Manual Book page 23

3. Press firmly to make a good connection. When properly connected,
the TI-Nspire™ handheld appears to be sitting on top of the cradle.
4. Lock the handheld in place by sliding the lock on the back of the
cradle to the ON position.
5. Insert each cradle into the charging bay. Make sure the LED is amber.
At the end of the school day, return the wireless cradle to the charging
bay and charge them overnight. The cradles are charged when all the
(power status) LEDs are solid green or amber.
Setting up the TI-Nspire™ Navigator™ Teacher Software
Lock in ON position.
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