The smallest member of the iPod family, the iPod Shuffle does not have a display screen. Instead, the Shuffle uses indicator lights to show battery status, to inform you when you press a button and to let you know if the device has a problem. Blinking lights on the iPod Shuffle represent different things depending on the blink pattern.
When the lights blink in an alternating green and orange pattern, this indicates that the iPod Shuffle contains no music. Connecting the Shuffle to iTunes to synchronise may resolve this problem. If the problem occurs even with music loaded, upgrade iTunes to the most recent version and then perform the synchronisation again.
Lights that repeat in a pattern where they blink green once and then orange twice indicate a serious problem with your iPod Shuffle. When this occurs, you must restore your Shuffle to factory settings. To restore, connect the Shuffle to your computer and open iTunes. Click on the Shuffle under "Devices" on the left side of the screen. Then click the "Restore" button and choose the desired restoration method. The "Restore" button appears in the main iTunes window on the "Summary" tab. Owners of the first and second generation of iPod Shuffles must use the iPod Reset Utility to perform the restore. You can download the utility from the Apple website.
The lights on the iPod Shuffle continuously blink orange while synchronising with iTunes. The Shuffle also blinks orange if enabled for disk use while connected to your computer. Do not disconnect the Shuffle while the lights blink orange because this can corrupt the device. Wait for iTunes to finish synchronising to eject the Shuffle.
To preserve battery life, the iPod Shuffle allows you to disable the buttons to prevent something from pressing them accidentally while in a pocket or bag. Disable the buttons by holding down the centre button until the lights blink orange three times before remaining orange. Enable the buttons by holding down the centre button until the light blinks green three times and then remains green.