Omg, none of the b*%#&#@ in costumer support was able to help me out and I know it could be frustrating. Here Is a sloution took me five hours to come up with it finally found it if you are having this problem you could not probably restore factory settings from your go gear. But after doing what I tell you this is the way your gogear is going to be back to Normal.
1st. Connect your gogear to the computer with usb cable.
2nd. Don't enter windows media player or device manager or anything to that has to do with the go gear.
3rd. Go to thisweb page (http://www.usasupport.philips.com/consumer/productDocuments.html?ProductCode=HDD6330/17&subCat=HDD_AUDIO_JUKEBOX_SU_us_CONSUMER
) Scroll down on the page and download (Firmware Upgrade Software).
4rd. Save the files to your documents they are zip files so unzip them and save them to your documents.
5th. Open your gogear on "my computer"(folder).
6th.Take the two files you saved on your documents they should be(DeviceDiversity) and (FWImage.ebn) and drag them to the folder named "Data" in your philips go gear.
7th. Disconnect the gogear(mp3) it should turn back of. If not turn it back on manually.
8th. In your gogear(mp3) go to "settings" then scroll down to "Factory Settings" and "Restore Factory Settings"
9th. Let the demo do it's magic.
10th. After 10 minutes get off the demo by pressing the off switch.
11th. Reconect the gogear(mp3) and go to "My Computer" right click the philips gogear and left click on Format. Let it Format, when done click (ok).
12th. Disconnect the gogear after you are done formating.
13th. Reconect gogear and then synchronise your music with windows media player.
14th. When done sychronising !ENJOY YOUR MUSIC!
This took me a long time to find out whope it works for you.
The Asswholes in costumer service are not profesionals don't know shit and they would wana charge you $40 to get this fixed plus shipping and handling. hope my article helps you Bye.;-)