Try icom themselves, I've found them very helpful. Sam, one of the top bods is a ribber.
.....sh1t happens.......
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Rule#2: Never argue with an idiot. He'll drag you down to his level & then beat you with experience.
Rule#3: Tha' can't educate pork.
Rule#4:Don't feed the troll
I've had great dealings with Icom for land mobile radios.
They were very helpful by email and cheaply repaired one and reflashed another to a different firmware for me.