My friend's Flip4 ordinarily shows that it's charging by having a blinking white dot under a nonblinkng blue circle, then 2 dots, etc., until it's fully charged at 5. It's not doing that. Instead it's sometimes 1 dot, sometimes none, blinking or steady, and the circle may be blue or white. I tried looking online for help, maybe a manual. I did find it but the pages are not enlargeable and the hieroglyphics are indecipherable. Please help.