I have an iPod shuffle 4th gen that I purchased in 2014, it has been unused for the last 3 years. I tried to charge it both directly with wall socket and on USB for equal amounts of time today and it has been charging with orange light for a day. When I connect it to via USB, iTunes recognizes the device and is able to read it's memory of songs while the status light blinks orange but there is no info on it's firmware needing any update. But when I remove it from charging, there is no status light and no sound in earphones when I try to turn it on. Any suggestions?