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Go530 fault - positions car to one side of the road
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harley-noj
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Joined: Mar 18, 2006
Posts: 86
Location: South Yorkshire

PostPosted: Sun Jul 01, 2012 7:54 pm    Post subject: Reply with quote

Ok I appear to have my TT720 working again.
As removing all files from ephem did not work for me?
This is my solution
I connected unit to computer and deleted all files from the SD card (I ran everything from SD)
Copied a previous backup to SD card (we all keep backups don't we)
So now I have ap 9.43 map v885
Ran TT home and did not change or update anything.
Remove from computer
It works and shows correct home location!!!!
Reconnect to TT home and update map etc.

Do not update Quickfix files via home

Remove from computer and it seems fine
Lets hope its now Ok
Noj
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Andy_P
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Joined: Jun 04, 2005
Posts: 19991
Location: West and Southwest London

PostPosted: Sun Jul 01, 2012 8:12 pm    Post subject: Reply with quote

When you say "reconnect to Home and update map etc." I'm guessing you HAD to update the software again too?

So are you actually back to exactly the same software and map version as you were on when you were seeing the problem?

That might be quite an important diagnostic clue....
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Guivre46
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Joined: Apr 14, 2010
Posts: 1262
Location: West London

PostPosted: Sun Jul 01, 2012 10:35 pm    Post subject: Reply with quote

Had this problem. Just connected my 530 to Home and found a new QgpsF [that was not there 5 hours ago], downloaded it and nothing else, and my 530 is now back to normal. Diagnosis complete I think? Rolling Eyes
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Mike R [aka Wyvern46]
Go 530T - unsupported
Go550 Live [not renewed]
Kia In-dash Tomtom
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harley-noj
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Joined: Mar 18, 2006
Posts: 86
Location: South Yorkshire

PostPosted: Sun Jul 01, 2012 10:48 pm    Post subject: Reply with quote

Hi Andy_P
Yes to your question.
The only thing I did not update was quickfix.
I see from Guivre46 that there is a new file.
I think I'll wait and see what others think about this before I try it.
To be honest I've had enough for 1 day
All the best
Noj
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Guivre46
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Posts: 1262
Location: West London

PostPosted: Sun Jul 01, 2012 10:54 pm    Post subject: Reply with quote

oh yes....I'm a NatWest customer as well.

Worn down indeed.
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Mike R [aka Wyvern46]
Go 530T - unsupported
Go550 Live [not renewed]
Kia In-dash Tomtom
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Blitzer
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Joined: Sep 05, 2008
Posts: 30

PostPosted: Sun Jul 01, 2012 11:30 pm    Post subject: Reply with quote

Well I experienced the same problem today after having not used my 530 for a while. I updated it yesterday ready for use today, but on trying it today found my position was not being correctly positioned on the TT. The end results being that the route was constantly beng re-calculated as the TT kept trying to place me on the nearest road to my position.

Anyway, having done a bit of re-search and following the links on this forum I did the following with the TT attached/connected to my PC whihch seems to have fixed teh problem...

    ephem - deleted all the files from within this folder on the TT. (I don't have a SD card on my 530, but perhaps those of you that do may need to see if this folder appears on both the TT memory and the SD card and delete all the files inside both folders?)

    Deleted all the files from the folder \Documents\TomTom\HOME\Download\complete\ephemeris

    Disconnected the TT via the home software.

    Turned off the TT.

    Turned TT back on - said NO when asked if I wanted to connect to PC.

    Confirmed TT was reporting my position correctly (it was).

    Turned off the TT.

    Turned TT back on - said YES when asked if I wanted to connect to PC.

    Did an Update and got the Quick GPS Fix (Nothing else offered).

    Turned off the TT.

    Turned TT back on - said NO when asked if I wanted to connect to PC.

    Confirmed TT was reporting my position correctly (it was).


I hope this is some help to other people. Smile
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alanlakes
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Joined: Dec 28, 2005
Posts: 100
Location: Chevington, Suffolk

PostPosted: Mon Jul 02, 2012 3:27 pm    Post subject: Reply with quote

Thanks Blitzer

Your solution works on my 910.

Alan
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MrT
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Joined: Nov 14, 2003
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Location: Surrounded by A1, M1 & M25

PostPosted: Mon Jul 02, 2012 3:32 pm    Post subject: Reply with quote

I wonder if the leap second on 30th June had any effect on this?
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Drivelux
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dhn
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PostPosted: Mon Jul 02, 2012 3:33 pm    Post subject: Reply with quote

It seems it did. The replacement gps file now available via Home resolves the issue to my understanding.
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David
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Biggles500
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Joined: Aug 13, 2010
Posts: 36
Location: Hemel Hempstead

PostPosted: Mon Jul 02, 2012 5:10 pm    Post subject: Reply with quote

I've had the same problem with my 720 shifting its position up to 500 metres away.

Did all the suggested solutions reset, deleting gps file etc. then downloading the updated file. However the problem was still there!

Deleted the gps file again from the 720 and normal operation resumed. Confused

So I'm not going to download THAT file again, until I'm sure it's fixed.
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Anita
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Joined: Mar 15, 2006
Posts: 3219
Location: Windlesham, Surrey

PostPosted: Mon Jul 02, 2012 5:33 pm    Post subject: Reply with quote

I've never felt the need to download the QuickGPSfix. My 720 gets a satellite lock pretty quickly anyway.

This isn't the first time the file has screwed up devices, and I'd rather restrict the possible sources of problems caused by TomTom to essential files.
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Apple
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Joined: Nov 19, 2003
Posts: 31

PostPosted: Mon Jul 02, 2012 8:02 pm    Post subject: Reply with quote

Deleting the quickfix files on my mac and 920 before downloading the updated version seems to have worked on a small trip out tonight to check that it held the road position.

Unfortunately, I now get an error message in Home effectively saying that files are missing. I deleted the files via finder (equiv to file manager / windoze explorer) rather than using the 'manage my Tomtom' section of home as it doesn't let you get to the actual 'system' files.

Would trying to put something back just confuse it as the numbers would be out of sequence? I guess it stores old files as QuickGPSfix-18, QuickGPSfix-19 etc.

Andy
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Andy_P
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PostPosted: Mon Jul 02, 2012 9:46 pm    Post subject: Reply with quote

I don't know what files it thinks you're missing, but emptying the "ephem" folder completely shouldn't generate any error messages.

Sure nothing else got selected by accident?
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Apple
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PostPosted: Mon Jul 02, 2012 11:40 pm    Post subject: Reply with quote

On the Mac I took out all the files / folders in
tomtom/downloads/complete/ephemeris/
but left that folder

An in the 920 ephem folder:
ee_meta.tlv
ee_meta.txt
packedephemeris.ss

Is this more than I should have taken out? Downloading the latest guickgpsfix has replaced the above files with the new versions...
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Andy_P
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PostPosted: Tue Jul 03, 2012 12:02 am    Post subject: Reply with quote

That's what I've removed in the past. So afraid I can't explain the error message you got.
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