Waiting for valid GPS signal

Makedoandmend Registered Users Posts: 1
New Seeker
I have a One 3rd gen which has developed a peculiar problem. It will work ONLY once after the battery has been allowed to go flat and it's been recharged. Once it's been charged I just get "waiting for a valid GPS signal" and a grey screen. I've done the WNRO bug fix and tried it again today. It worked one way and then just left me with a grey screen. Doesn't seem to matter what I do. It is becoming very frustrating.
I don't want to hear the "legacy device" argument - I really just want to use it again.
Thanks in advance.



  • YamFazMan
    YamFazMan UKPosts: 21,334
    edited October 2021
    A Drum-roll Soft Start can help.... Hold the ON/OFF Power button in until you hear a Drum-roll sound... Then release the button.... This will reinitialize the device's Operating System, like restarting your PC

    Fully charge the Battery (At least 2 Hours)
    (Preferably using something like a Smartphone Charger + Using the Tomtom USB lead)
    A low battery can cause GPS Satellite fix problems...
    First Plan a route on the device... Now place the device outside with a clear view to the sky
    (I used a 5200 mAh battery power-pack... while waiting for a Satellite lock)
    It can take anything up to 30 Minutes to get the first Satellite Lock
    After the Initial 'First Lock' the device should lock quickly onto the Satellites

  • YamFazMan
    YamFazMan UKPosts: 21,334
    edited October 2021
    Hi again If you are still struggling to get a GPS Fix
    I have found with my Car parked on the drive, if I placed the device on the centre of the Car's roof (I used one of those 'Sticky' rubber mats to stop it sliding off the roof)
    The device will obtain it's first GPS Satellite lock more quickly... The metal roof of the Car acts as a ground-plane for the SatNav GPS Antenna and increases the signal strength

    Test... GO 825 Live connected to a 5200 mAh battery power-pack... PND Displaying 'GPS Status Menu'
    (1)... Centre of Car roof (Parked on drive).....
    Signal strength 86% Connected Satellites 9
    (2)... Outside clear view to the sky.....
    Signal strength 61% Connected Satellites 6
    (3)... Indoors 1st floor one metre from window.....
    Signal strength 51% Connected Satellites 4
    (4)... Indoors ground floor one metre from window.....
    Signal strength 41% Connected Satellites 3

    DON'T FORGET... If you're using the cars roof
    Keep an eye on the device, you wouldn't want a family member driving off not knowing it's on the roof or a Thief walking off with your SatNav
    Also, it's a long drop from the Car's roof onto the hard surface of the drive, I doubt a SatNav would survive a fall like that