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Question About Cobra Electronics Two-Way Radio MR HH400 EU
UL Screen message on MR HH400...

UL message appears on screen at power-up. Radio appears locked to all activity. Lock button is not activated. batteries OK. Normal activity yesterday. Not overcome by removing and re-insering batteries

Asked by Graham on 02/20/2010 2  Answers

ManualsOnline posted an answer 14 years, 4 months ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

Gordon posted an answer 13 years, 4 months ago

0 My Cobra HH400 is the same. Don't know what to do?
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