Telstra Flip 2 T21 User Manual page 45

Symptom
I cannot connect to
other Bluetooth devices
My data usage is
excessive
ERROR MESSAGES
Message
No SIM Card
Enter PIN code
Enter PUK code
Enter Unlock Code
Solution
Turn Bluetooth on. Set visibility to Show. Make sure the
pass-code is correct. Possible compatibility issues. Not all
functionality is supported between different Bluetooth
devices and standards.
Check Settings > Data usage to determine which apps are
consuming your data. Google+ can use large amounts of
backup data. Review under Google+ > Options > Settings
Solution
Check a valid SIM card is inserted.
See the Getting Started section
You have set a SIM PIN. Please enter your SIM PIN code.
Contact your Service Provider to get the PUK code
Contact your Service Provider to obtain the network
unlocking code.
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