Panasonic KX-TU446 - Troubleshooting and Support Resources; Resolving Common Phone Issues

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Useful Information
Troubleshooting
Getting Started
Troubleshooting
If you still have difficulties after following the instructions in this
section, turn off the phone, remove the battery, then turn it on
again after about 1 minute.
Display messages
Display message Cause/solution
SIM Error
Contact your network operator/
service provider for further
information.
Limited Service
There is no network service in your
current location. Move to another
location where your network can be
received properly. You can only call
the international emergency number
“112”.
No Service
There is no network service in your
current location. Check the current
status and move to a new location
with better reception.
PUK1 Blocked!
or
PUK2 Blocked!
You entered incorrect PUK1/PUK2
code 10 times, therefore PUK1/
PUK2 code is blocked. Contact your
network operator/service provider.