Hytera PNC 550 - Troubleshooting; Common Issues and Solutions

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10. Troubleshooting
Phenomena
Analysis
Solution
You cannot turn
on the terminal.
The battery may be improperly
installed.
Remove and reattach the battery.
The battery power may run out.
Recharge or replace the battery.
The battery may suffer from poor
contact caused by dirty or damaged
battery contacts.
Clean the battery contacts.
The terminal is
frozen with no
response to your
operations.
The terminal runs too many apps.
Stop some running apps or restart the
terminal.
You cannot use
the keys.
The keys may not work temporarily.
Restart the terminal and try again.
The keys are damaged.
Contact your dealer to repair.
The LED indicator
works abnormally.
The LED indicator gives wrong
indications.
Restart the terminal and try again.
The LED indicator is damaged.
Contact your dealer to repair.
The touchscreen
displays nothing.
The touchscreen may not work
temporarily.
Restart the terminal and try again.
The touchscreen is damaged.
Contact your dealer to repair.
You cannot
connect the
terminal to mobile
network.
An error occurs to the SIM card.
Ensure that the SIM card can be identified.
The SIM card is suspended.
Restart the terminal after subscription.
The SIM card does not support data
Contact the carrier or your dealer to enable