Question about Navman F20 GPS Receiver

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F20 navman error

On switching on f20 failure unable 2 detect internal memory states plz contact navman technical support. plz help as i need navman 4 my work

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  • Anonymous Oct 30, 2008

    I have same problem Help !! Thanks Phillip




  • matthewdubie Feb 04, 2009

    I have same problem. Have tried removal and replacement of micro sd card. No luck :-(

    Can anyone suggest anything else?

    Thanks

  • donnell455 May 11, 2010

    i want the solution

  • Derek Thomas Mar 02, 2012

    After messing around with tiny sd card in back of Navman hoping to resolve the problem im afraid (to date) problem still exists...there is only one possible way the sd card fits snuggly into its casing so it cant be in the wrong way ll try resetting it a few more times...very helpful site & straight to the point...I havent given up yet...i,ll keep this matter updated,whichever way it turns out ...

  • Derek Thomas Mar 05, 2012

    Just googled the official site for Navman which is Navman.com, click on support,choose your device,every possible solution for old & new gps devices are there.. downloads for drivers & maps...most, if not all are free...sorted,panic over.

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You need to remove the 2 screews from the bottom and then gentley prize the unit apart from teh bottom using a blunt broad knife will help if you cant have the plastic case splitting tools which are used in the trade,

then once apart the same side where the power button is you will see a microsd card its the same as in a mobile phone just pull it down from the top (its hinged at the bottom) then make sure the card is in correctley and then close it back and test (b4 putting the case back on) that will fix it we ahve a lot of these coming in and its where its been dropped etc and jumps out thats it

from fototime. co .uk

Posted on Nov 14, 2008

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I have had the same problem and did what gossages recommended and it worked straight away thank you very much!!!!

Posted on Jan 13, 2009

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Even Windows 7 cannot find device driver software,its not suppose to be this difficult to resolve..I even purchased a replacement lithio battery,the bigger internal black one that plugs into the other socket...even that didnt help....there should be a website operated by Navman where customers can go to download device driver software & update maps..if this company wishes to keep a loyal following for its customer base?

Posted on Mar 05, 2012

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Thanks Gossages
Took a couple of resets of the micro, but works get now
Thanks

Posted on Mar 21, 2009

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I have just mucked about with the micro sd card in my navman f20 and now its working fine

Posted on Feb 09, 2009

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Navman f20 wont turn on says F20 ERROR UNABLE TO DETECT INTERNAL MEMORY


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The internal memory on the F20 is actually an mini SD card inside the unit and this fault is caused if the card can't be read. This is mostly likely because there is a poor connection to the card. To cure the problem:
1) Remove the two screws on the bottom of the unit.
2) Divide the two halves of the case. Its best to do this by using your finger nails or a plastic lever. If you use a screwdriver or something similar you will most likely damage the case. Take care when you finally are able to divide the two halves of the case not to strain the cables connecting the battery and loudspeaker.
3) You should be able to see the SD card in its holder on the circuit board. To remove the SD card pull the top edge away from the board and the top half of the holder should hinge outwards. Don't try to pull the card out as you would do from a normal external SD slot.
4) Examine the terminals for any corrosion or contamination. In most cases just removing and re-inserting the card does the trick. You can safely switch the F20 on with the case still open, but don't attempt to insert or remove the SD card with the F20 turned on as this may damage the circuitry.
5) If this doesn't solve the problem the card itself may be corrupted. You can check this by inserting it in a computer card reader to see if it can be read that way.

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I have a F20 here I am currently tring to fix.

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It may be totally usesless, or need re-programming via the USB port.

You can download the firmware, and it fixes a working MicroSD card.

If your card is damaged, then you will have to replace it, and strip the F20 down to do so.
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I warn you, though.
Stripping it down is a bit tricky.
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Hi,

I think that the micro SD card inside the GPS is not in the good position, it is necessary to remove the grey sticker on the rear of the GPS and open the hood to access the SD card and then you can plug it in good position.

DAMS

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