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Appendix B Page 207
Wireless communication problems
Problem Solution
I can’t use the wireless
features
■ Make sure your Treo battery is charged.
■ Make sure wireless mode is on. To turn on wireless mode,
press and hold the power button for at least two seconds,
until you hear a confirmation tone. An ascending tone
means wireless mode is now on, a descending tone means
wireless mode is now off.
I get a message that my SIM
card is missing when I turn on
my Treo
■ Make sure your SIM card is properly inserted. The metal
contacts must face up on the inside of the SIM door, and
the side with the corner cut must slide into the SIM slot
first. For details, see the instructions in the Quick
Reference guide.
■ Your SIM card may be damaged. Contact your wireless
service provider for a new card.
My Treo requires an unlocking
code (PIN), but I didn't set one
■ Your wireless service provider may have set the locking
code before you received your Treo. Enter the default
unlocking code (PIN) and then tap OK. In North America,
the default unlocking code is usually 1234 or 1111. If this
doesn't work, contact your wireless service provider.
Note: It is actually your SIM card that is locked, not your
Treo.
■ If you see the Unblock Phone screen instead of the Unlock
Phone screen, you entered the unlock code (PIN)
incorrectly three times, and your Treo is now blocked.
Contact your wireless service provider to obtain the
unblock code. If you enter the unblock code (PUK)
incorrectly ten times, your SIM is permanently disabled.
I called my wireless service
provider to activate my
service, but wireless mode still
doesn’t work
Some wireless service providers require 24 hours or more to
activate your wireless service. If it has been longer than your
wireless service provider’s activation period, report the problem
to your wireless service provider.
My phone number isn't on the
Phone Info screen
Your wireless service provider may need to install your phone
number onto your SIM card. Contact your wireless service
provider to see if they can send a message to your Treo that
writes your phone number onto your SIM card.