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Model No: UH100
Turn the unit off, Press and hold "SCAN" & "SCRAMBLE(TSQ)" buttons together at the same
time and turn the power back on. After 15 seconds turn power back off then on
Model No: UH305SX-2NB
Turn the unit off, Press and hold "[channel▲] and [ vol ▲]" buttons together at the same time
and turn the power back on. After 15 seconds turn power back off then on
Model No: UH400SX/UH500SX/UH5050
Turn the unit off, Press and hold "DCS/CTCSS" SCAN & "MEM" buttons together at the same
time and turn the power back on. After 15 seconds turn power back off then on
Model No: UH405SX-2NB
Turn the unit off, Press and hold "[channel▲] " & "[vol▲]" & "[vol ] buttons together at the
same time and turn the power back on. After 15 seconds turn power back off then on
Model No: UH506SX-2NB/UH515DLX-2/UH510,
Selected Channel 21, Turn the unit off, Press and hold "[channel ]" & "hi/lo" buttons together
at the same time and turn the power back on. After 15 seconds turn power back off then on
Model No: UH507SX-2NB
Selected Channel 21, Turn the unit off, Press and hold "[channel ]" & "hi/lo" buttons together
at the same time and turn the power back on. After 15 seconds turn power back off then on
Model No: UH710SX/UH710SX-NB
Turn the unit off, Press and hold "MON/DUAL"& "MENU/ENT" buttons together at the same
time and turn the power back on. After 15 seconds turn power back off then on
Model No: UH720SX/UH720SX-NB
Turn the unit off, Press and hold "MON/DUAL"& "MENU/ENT" buttons together at the same
time and turn the power back on. After 15 seconds turn power back off then on
Model No: UH7700NB/UH5000/UH5000PNP
Turn the unit off, Press and hold ''MENU''& "SCAN" buttons together at the same time and
turn the power back on. After 15 seconds turn power back off then on
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