What yellow dot? Not sure what you’re referring to…
Charging the battery should take about 3 1/2 hrs, I recommend doing this before attempting anything else with the Sansa Clip. Once the battery symbol stops flashing, it’s fully charged. If the battery self-discharges within a day or 2, you have a defective Sansa Clip & you’ll have to exchange it. The average “playtime” of the battery is 15 hrs, depending on your settings & file type.
To update the firmware, download the zip file posted here: http://forums.sandisk.com/sansa/board/message?board.id=clip&thread.id=2946 , extract the bin file to your computer, plug in your Sansa Clip, open windows explorer, locate both the bin file & the Sansa Clip(should be detected as a removable device), copy & paste the bin file to the Sansa Clip’s root directory, unplug the Sansa Clip, & the firmware upgrade will begin. When that’s done, the Sansa Clip will shut off. Turn it on again, & the database will refresh. Voila! You will now have the new firmware.
I hope this helps! Let us know if you need any further assistance.