my device is the Sandisk Sansa Clip Zip, it’s not turning on. I tried to charge it using 3 different USB cord I connected it to a computer but the computer wasn’t reading the device. I tried it to other computer but still same problem. I tried to charge the device using a USB cord with and an adapter, I plugged it to the wall, it was connected for 2 hours but it doesn’t charge. I press and hold the power button for 20 secs but still doesn’t turn on. Please help me fix this problem. I love this item, I use this every day. Please respond to post. THANK YOU. Please! please! please!