My 120 g classic thick iPod shuts off/crashes during play randomly even when fully charged (I dropped it twice on the treadmill and started acting up thereafter). I have to plug plug it as to charge and wil come on. It plays continuously when docked to an ihome. I’ve tried restoring it to factory and updating the software to no avail. I have 64g left to use. Please help. I love my iPod but it’s very annoying when trying to workout and stops.