My laptop has lost sound showing no speakers or headphones are plugged in red circle white cross

SOURCE: TomTom GO 720 - flashing red circle with white cross on screen

Hi, I am back, just got the problem solved, I called their tech support at no charge (866-486-6866, Glen) , really good service.
First turn your firewall off (if you have one). You need to go into your 720 with the TomTom Home software and erase the downloaded software (with the remove items from my device) and reset the device (little reset button under the unit keep it pressed for 5 seconds), place it back in the cradle and restart your computer and than restart the 720 , bring the TomTom Home program up, and when the TomTom Home software in your computer restarts and detects the 720 it will tell you that you need to update the application, if it doesn't than you force the update by going to the add maps option, select items on my computer, select applications and press the add button, when done, go back and to device (option in top of your screen) and select disconnect device, restart your 720 and it should be back to life with the upgraded software.
Hope this helps
Aldo

SOURCE: GO 910 Cannot remove flashing white cross in red circle

Same here today. Had to replace all the files with those I copied and burnt to a backup CD when I first connected the ONE. If I try just a map update through Home (not an application update) then I get a "No Maps" message after startup. I'll bet dozens of perfectly good units are being replaced by retailers everywhere. I am now going to seek an explanation from TomTom. It may just be that the current updates are buggy or corrupted. At least I had the sense to back everything up before I tried to update the thing so I can quickly get going again. Spent about three hours so far faffing about with this "plug and play with yourself" little marvel. Bah!

SOURCE: Toshiba satellite laptop

I think the problem is in your Headphone jack.


Hope this helps.

SOURCE: macbook 2 ghz white no sound

this has been answered, just stick something small in the headphone port, best to save money, or take in a local apple store.

SOURCE: Sound Problem

Hi.........i have a compaq presario 700 series.In my laptop if i plugged my headphone into my laptop the lap speakers cant stop working,both laptop and headphone speakers are working