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The latest update to fix the GPS Week Number Roll-Over for the NAV3 devices has been available since...
Version 12.075 Released on 26 July 2018
This update applies to: GO 1000, GO 1005 / GO 2050, GO 1050, GO 1050 World, GO 2405, GO 2435, GO 2505, GO 2435, GO 2505 LIVE, GO 2535, GO 2535 TM WTE, GO LIVE 1000, GO LIVE 1005, GO LIVE 1050 / GO LIVE 2050, GO LIVE 1535, GO LIVE 2050, GO LIVE 2535 M, GO LIVE 820, GO LIVE 825, GO LIVE Camper & Caravan Edition, PRO 5150 Truck, Start 20 / Via 220, Start 25, Start 60 (2012), Via 110, Via 115, Via 120 / Via 160, Via 125, VIA 130 / 135, VIA 1400 / 1405, VIA 1410 / 1415, VIA 1430 / 1435, VIA 1500, VIA 1505, Via 1530 / 1535, VIA 160, VIA 1605, Via 180, Via 220, VIA 260 / 280, VIA All Blacks Edition, VIA LIVE 120, VIA LIVE 125, VIA LIVE 160, VIA LIVE 180
•Bug fixes and improvements: Various performance improvements and bug fixes have been implemented. • This update prepares your navigation device for the week number rollover in April 2019 which has an impact on GPS.
My NAV3 Via120 Live & GO 825 Live both work fine with NavKit Version 12.075
To check NavKit version....
From the main menu
Tap (Settings)
Left Cursor once for next page
Tap (Me and my device)
Tap (About my device)
Second line... App Version
Follow onscreen prompts to exit
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 devices Operating System, like restarting your PC
Fully charge the Battery (At least 2 Hours)
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 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
Charge your unit for 2 hours and then take it outside well away from buildings and trees etc with a clear view of the sky.
Turn the unit on and when working do a Soft Reset ie hold the ON/OFF button down until you hear the drumroll sound then let the button go.
When it has started again create a route on it and when you would normally be ready to drive off leave it where it is and don't move it for as much aa 30 minutes plus t see if it locks on to the Sats.
It has been found that sitting it on a car roof can speed the result but make sure you do not leave it unattended. If you can provide a power source whilst it was searching then that could be beneficial.
If your still struggling to get a GPS Fix
Try....
I have found with my Car parked on the drive, if I placed the device on the centre of the Cars 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 your using the cars roof
Keep an eye on the device, you wouldn't want a family member driving off not knowing its on the roof or a Thief walking off with your SatNav
Also its a long drop from the Cars roof onto the hard surface of the drive, I doubt a SatNav would survive a fall like that
Use the above information at your own risk, the usual exclaimers apply
Charge your unit for 2 hours and then take it outside well away from buildings and trees etc with a clear view of the sky.
Turn the unit on and when working do a Soft Reset ie hold the ON/OFF button down until you hear the drumroll sound then let the button go.
When it has started again create a route on it and when you would normally be ready to drive off leave it where it is and don't move it for as much aa 30 minutes plus t see if it locks on to the Sats.
It has been found that sitting it on a car roof can speed the result but make sure you do not leave it unattended. If you can provide a power source whilst it was searching then that could be beneficial.
Don’t knock something that has been seen to work. If a GPS unit has lost the ability to lock onto the Sats then taking it to somewhere that gives it the best chance to re-establish contact is the thing to do. Once it has Re locked on then in future it will usually find them quicker and in the more challenging environments as it is designed to do.
Answers
Superusers
Superusers
@crashbabacue
The latest update to fix the GPS Week Number Roll-Over for the NAV3 devices has been available since...
Version 12.075 Released on 26 July 2018
This update applies to: GO 1000, GO 1005 / GO 2050, GO 1050, GO 1050 World, GO 2405, GO 2435, GO 2505, GO 2435, GO 2505 LIVE, GO 2535, GO 2535 TM WTE, GO LIVE 1000, GO LIVE 1005, GO LIVE 1050 / GO LIVE 2050, GO LIVE 1535, GO LIVE 2050, GO LIVE 2535 M, GO LIVE 820, GO LIVE 825, GO LIVE Camper & Caravan Edition, PRO 5150 Truck, Start 20 / Via 220, Start 25, Start 60 (2012), Via 110, Via 115, Via 120 / Via 160, Via 125, VIA 130 / 135, VIA 1400 / 1405, VIA 1410 / 1415, VIA 1430 / 1435, VIA 1500, VIA 1505, Via 1530 / 1535, VIA 160, VIA 1605, Via 180, Via 220, VIA 260 / 280, VIA All Blacks Edition, VIA LIVE 120, VIA LIVE 125, VIA LIVE 160, VIA LIVE 180
•Bug fixes and improvements: Various performance improvements and bug fixes have been implemented.
• This update prepares your navigation device for the week number rollover in April 2019 which has an impact on GPS.
Here Tomtom FAQ...What's new in the latest software for my navigation device?
https://uk.support.tomtom.com/app/release_notes/type/navkit
My NAV3 Via120 Live & GO 825 Live both work fine with NavKit Version 12.075
To check NavKit version....
From the main menu
Tap (Settings)
Left Cursor once for next page
Tap (Me and my device)
Tap (About my device)
Second line... App Version
Follow onscreen prompts to exit
ATB YFM
Superusers
@crashbabacue
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 devices Operating System, like restarting your PC
Fully charge the Battery (At least 2 Hours)
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 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
ATB YFM
Superuser
Try this
Charge your unit for 2 hours and then take it outside well away from buildings and trees etc with a clear view of the sky.
Turn the unit on and when working do a Soft Reset ie hold the ON/OFF button down until you hear the drumroll sound then let the button go.
When it has started again create a route on it and when you would normally be ready to drive off leave it where it is and don't move it for as much aa 30 minutes plus t see if it locks on to the Sats.
It has been found that sitting it on a car roof can speed the result but make sure you do not leave it unattended. If you can provide a power source whilst it was searching then that could be beneficial.
All the best.
Doug
Superusers
@crashbabacue
If your still struggling to get a GPS Fix
Try....
I have found with my Car parked on the drive, if I placed the device on the centre of the Cars 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 your using the cars roof
Keep an eye on the device, you wouldn't want a family member driving off not knowing its on the roof or a Thief walking off with your SatNav
Also its a long drop from the Cars roof onto the hard surface of the drive, I doubt a SatNav would survive a fall like that
Use the above information at your own risk, the usual exclaimers apply
ATB YFM
Well useful for a satnav in a city then..
Superuser
Don’t knock something that has been seen to work. If a GPS unit has lost the ability to lock onto the Sats then taking it to somewhere that gives it the best chance to re-establish contact is the thing to do. Once it has Re locked on then in future it will usually find them quicker and in the more challenging environments as it is designed to do.