Question about Navman F20 GPS Receiver

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B2+ on navman F20

Hi using B2+.
Phone facilities work ok.
Software is most current so ready for B2+.
However F20 will not show caller display when it supposed to. Also it wont see the traffic module which is plugged into B2+.
Cannot find anything wrong.
Can you help please.
Thanks in advance.

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Re: B2+ on navman F20

Try cleaning the contacts on your b2 with a contact cleaner, could be that simple.

Posted on Jun 24, 2009

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1 Answer

Hi I have a navman f20 which shows a batterey with a x on the display then turns off I have allowed the unit to discharge fully when on recharge it shows the same display

The battery is defective or your charger is not working. Most likely it is the battery but the charger is a possible until checked. You may want to find a gps shop and find out if they can get a battery.You can also contact Navman and talk to support about sending it in to them for repair. The battery should be about $20 plus labour to install.

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Screen is showing computer, usb connection, navman which are joined together by a serious of dots with the computer screen to usb connection showing green lights

The F20 Desktop Software and Service pack on the CD's from navman do not work, as you have seen. The solution is to go to the navman website and download this Service Pack

Be sure your f20 is connected to the USB cable and turned on displaying the USB Connection screen. Leave it on during the entire process.

Once downloaded, run this self extracting file and let it install automatically. After it is installed and will see the same error again of failure to connect.

At this point you must reinstall the driver manually. Right click on your "My Computer icon, Select Devices, then properties on the navman. You should see a yellow "?" next to a statement "Unknown Device" in the USB devices. Click on the "Reinstall Driver" and select a specific location or the Have Disk button. The USB driver is now located in C:\program files\Navman\f20servicepack\USB directory.

You should get a button that now says Okay at the bottom, click onto it and allow the MS program to update the drivers. You should see the device screen change and say "This device is operating properly". You can then close the windows and run the F20 desktop program. It should connect then.

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1 Answer

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Hi The B2 is not the device that requires ID updating but the navman F series module, as this is what actually displays the Caller ID. Go to the address at the end i've given you and it'll take to straight to the relevent download page and download your relevent F series download.

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5 Answers

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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

Oct 29, 2008 | Navman F20 GPS Receiver

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please remove the memory card and try it ..if it work's may be memory card be corrupted..

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No you cannot. Although you can receive/make calls through the b2, there is no display on the satnav itself.

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try pushing the reset button underneath the unit. As for stopping it from happening again, maybe check that you have the latest software version.

Mar 30, 2008 | Navman F20 GPS Receiver

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Where can i get a f20 user manual

No problem for any Navman user manual - go to - the site is 'Navman - beyond navigation' - click on 'UK' - on the right hand side of the page click on 'user manuals' - the manuals are there for all models ever made, in all languages - scroll down to the manual you require, click on and download or print off - easy...

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this is because of high voltage in input AC power so u have to replace it

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