No GPS Signal in TomTom One XL all of a sudden

Same Problem with my "one" Tried all suggestions, firmware updates, etc. My unit is out of warranty and TomTom doesn't service out of warranty units. They give you $50 off a replacement unit, BIG DEAL.
DON"T buy TomTom, get a Gamin. Better service, warranty, reliability.

the website says that you have to upload TomTom HOME from thir site and update your GPS signal once a week for optimum signal because the satellites move... the only problem is TomTom HOME seems to be more than a pain to load

I suddenly lost the GPS signal today and could not get it back. All I got was the "No valid GPS signal". My solution was to tap on the GPS satellite bars when in the route map. this brought up the "Status summary page of the TOMTOM.

I then again tapped the satellite bar which brought up the "GPS Status" page. I then tapped the bar labeled "configure".

The radio button next to the option titled "Minutes (dm.m') was selected. I then moved the selection to "Degrees (d.d) and it started working.

I had just downloaded the GPS fix 5 days ago so it is not like this suddenly caused it to stop working.

This may not work for everyone but this is what it took to get mine working.

Cheers

After working perfectly well last night, first thing this morning right when I needed my Tom Tom "NO VALID GPS SIGNAL."  Despite driving into another county with the help of the old fashioned road map - still no luck, still no valid signal.  
This evening I have uploaded all the new updates that appeared in Tom Tom Home, and now i have nearly full signal again.  This worked for mine.  Hope it helps! x

Holding power button for about 15-20 seconds seemed to reset the unit. GPS is back now.

I downloaded all the most recent updates, including the map correction option, then went outside and fiddled about with the configuration of the GPS status. It seems to work best on Degrees (d.d).

I have had my GPS (TomTOM One) on Waiting for Signal for 2 weeks now and I finally fixed it.

My symptomtoms (word play) were no signal at open areas, when connected to Tom Tom Home it showed exactly where I was and worked through the PC but when disconnected back to the same thing.

I called Tom Tom CS and nothing, FLash did nothing, factory defaults nothing, and updating did nothing.

What I did:
I charged the unit completely.
I took a paperclip and while off pressed on the reset button at the bottom by SD slot. I held it there for 30 mississippi's.
I did not turn it on after letting go.
I went outside to my car (parked on roof of parking lot) turned it on and set it on my dash vertically.
I left and came back in 1 hour and wallaaaaa. It is working perfectly!

Let me know if this fixes it.
xgranados@entouch.net

I had the same problem; after reading this solutions, I have installed all the updates using tom tom one home but it doesn't work, then I have connected my tom tom one with my lap and tried to access thru my lap using map correction option, then it starts working. I hope this will help you all.

no GPS signal in tomtom one XL

i have had my tom tom one for about 3years with no problems but recently it has lost its gps signal.i have updated it on tom tom website but nothing still happens,can anyone help please

This happened when I came back from Brazil...i think when you get an an area where the tomtom has to search for new satellite coordinates or loses the signal for a certain period it has difficulty finding again, so:

Go in to tom tom menu and rerset tom tom to factory setting (in the menu/change preferences/reset to factory settings)

Once you do that it will prompt you that you will lose all your saved favorites and itineraries ( i went ahead and said ok, if not you can write you addresses down before doing this)

Finally after you complete the process of resetting your tomtom probably still won't have a GPS signal. So in the menu/change preference/GPS status you will see a configure option

Select this option and ensure that the radio button is set to degrees and select done

leave tom tom on and allow 5-10 min for it to relocate the signal.

If that doesn't work, hope you bought a warranty :)

having charging problem. sometime tom tom will come on by itself. scary. any suggestions

Had a GPS signal/no satellites problem on my TomTom One XL, unable to get a signal for three days and really not impressed. TomTom was up-to-date with firmware etc and TomTom help is next to useless so I tried re-setting the unit, changing the satellites, chucking the unit across me cab, shouting at it and nothing! And then just for fun, I placed the unit on it's side on my windscreen and guess what? I now have a complete signal again and TomTom is working fine. I am not an engineer or anything, just a simple HGV driver but now I'm thinking I should be working for TomTom! Give it a try and if it works for you... GREAT!

Hope this helps!

Regards, Pete

My Tom Tom XL also lost its GPS signal after 2 months of reliable use.... 2 days later, still no signal... so I tasked my hubby to return it which took a number of days (by which point the battery had died) I asked him to charge it enroute to the retailers to prove upon arrival that it wasnt working and voila! It was working again?! Maybe the flat battery did a reset? But its working fine again now.....bizarre...cant say I have complete confidence!