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The following table shows the status indicated by
the battery indicator LED on the CPW90 wireless
expansion microphone.
LED status
Description
Solid green for one
The CPW90 is turned on.
second and then off
Solid green for 3
The CPW90 is in the idle mode.
seconds and then off
Solid green
The CPW90 is fully charged.
Solid red
The CPW90 is being charged.
Fast flashing red 3
The battery capacity is too low to turn on the CPW90.
times and then off
Slowly flashing red
The battery capacity is less than 10%.
If you tap the Mute button and the battery indicator LED on
Off
the CPW90 is still off, it means the CPW90 is turned off.
CPW90 working frequency
For reference, the frequencies/channels used by the CPW90
in each region are tabulated below:
Freq (MHz)
RF carrier index (DECT tester numbering)
EU
Taiwan
1881.792
9
9
1883.520
8
8
1885.248
7
7
1886.976
6
6
1888.704
5
5
1890.432
4
4
1892.160
3
3
1893.888
2
2
1895.616
1
1897.344
0
1899.072
1900.800
1902.528
1904.256
1095.984
1907.712
1909.440
1911.168
1912.896
1914.624
1916.352
1918.080
1919.808
U.S.
LA
Korea
Brazil
4
9
3
8
2
7
1
6
0
5
Freq (MHz)
RF carrier index (DECT tester numbering)
EU
1921.536
1923.264
1924.992
1926.720
1928.448
1787.616
1789.344
1791.072
Chapter 11: Maintaining your phone
When your phone is unable to operate properly, you need to
investigate or troubleshoot issues, among other tasks your
system administrator may ask you to perform.
Topics:
• Investigating warnings
• Clearing warnings
• Rebooting your phone
Japan
• Resetting to factory settings
• Updating the phone configuration
Investigating warnings
A warning icon
default password is used. The warning icon is used to remind
you to change the default password as soon as possible.
You can view details about the issue from the Status screen.
Procedure:
Swipe up to down to display the notification center, then tap
4(F1)
the issue notification to see the details.
3(F2)
Related topics:
2(F3)
• Clearing warnings
1(F4)
• Changing the administrator password
0(F5)
Clearing warnings
You can temporarily remove the warning icon from the status
bar. However, the warning message is still displayed on the
General screen until the issue is fixed.
The warning icon appears in the status bar again after reboot if
the issue is not fixed.
Procedure:
1. Swipe up to down to display the notification center, then tap
the notification to see the details
2. Tap the Warning field. The phone screen prompts you
whether to clear the warning icon
3. Tap OK
Taiwan
U.S.
LA
Korea
4
4
3
3
2
2
1
1
0
0
8
7
6
is displayed in the status bar when the
User guide
Brazil
Japan
50
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