XL Tough is completely unresponsive. When it is connected to the AC charger the light is solid green. When it is unplugged the charger it will not turn on. I have tried resetting it a few times and it is still unresponsive. It’s as though the radio has simply died. It is a fairly new radio, I’ve only had it for a few months and it has only been used a few times. Any ideas on how to fix this problem?