Hytera PNC380 - Unstable WLAN Connection; Audio Noise and Hiss; SIM;SD Card Detection Issues; GPS Location Problems

User Manual
Troubleshooting
38
Phenomena
Analysis
Solution
Both the mobile and WLAN network
are turned on, but the WLAN
connection is unstable.
Turn the WLAN off.
You are unable to
hear anyone because
of too much noise and
hiss.
The signal may be weak.
Make sure call participants are within the
communication range.
The radio may be at an unfavorable
position. For example, the signal may
be blocked by tall buildings or
frustrated in the underground areas.
Move to an open and flat area, and try
again.
The radio may suffer from external
disturbance (such as electromagnetic
interference).
Stay away from equipment that may cause
interference.
The radio fails to
detect the SIM card or
SD card.
The SIM card or SD card may be
installed improperly.
Remove and reattach the SIM card or SD
card.
The SIM card or SD card may suffer
from poor contact caused by dirtied or
damaged metal contacts.
Clean the metal contacts of the SIM card or
SD card.
The GPS cannot
locate your position.
The radio may be at an unfavorable
position. For example, the signal may
be blocked by high buildings or
frustrated in the underground areas.
Move to an open and flat area, and try
again.
The battery fails to be
charged.
The data cable may be connected
improperly.
Remove and reinsert the data cable.
The power adapter plug may be
inserted into the socket improperly.
Remove and reinsert the plug.
If the above solutions cannot fix your problems, or you may have some other queries, contact your dealer or the
Company for more technical support.