NAVMAN F20 failure - unable to detect internal memory

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

Wow, I had the same problem. Dropped it on the floor and it started working again. What a gimp system.

Dcurtis5 is CORRECT!!!! Give the mother******** thing a dam good whack on something hard. It really does fix the problem!!

thanks very much dcurtis5!!

Bang that ************** on something hard. I had the same error, so I saw a couple of websites similar to this one. I decided to try and take it apart. I could not get the back off of it after I took the only two screws in it... SO I WENT CAVEMAN ON THE PIECE OF **** AND HIT IT AGAINST MY DESK AND IT TURNED ON AND STARTING WORKING AGAIN. GIVE IT A TRY WHAT CAN IT HURT??

Had this same problem with my F20. When I read some of the other entries I though "what a bunch of Jokers"....give it a good bang and it will work. Yeah right..............but guess what ????
I gave mine a good bang and hey presto, good as new. From now on, when anything of mine stops working I'm going to give it a good bang (that includes the missus !)
Thanks guys.

Same here - bashed it on the desk and hey presto - just like new.
But..... I will never buy a Navman product again - EVER!
Not only is the system so volatile, the maps you get with the system are totally out of date. Anybody know where I can get copies of New Maps?

Omg i can't really believe i followed everyones advice and banged my satnav on a hard surfave but hey presto glad i did it works lol

NAVMAN F20 failure - unable to detect internal memory
give it a good bang i did and it started to work again ,
babyduck

It looks like several of us experienced the "internal memory failure" problem with our Navman F20 right after downloading upgrades from Navman.com
When I called them they told me that nobody else had had this problem and that I was the only one reporting it. They made me beleive my problem was one in a million. But by the number of complaints posted I see that a lot more people than just myself have experienced this problem. Do you think Navman is posting an upgrade that corrupts our devices once we downnload "software upgrades form their website so that we are forced to pay them $145.00 to fix it?
If this theory is true, I smell a class acton suit to Navman. Shall we get in contact with each other and discuss this problem further? If we get enough proof about it, may be a lawyer would be interested in our case, don't you think?
Let's show this company they can't treat their costumers like this.

Hey, I tried this and it worked for me ... switch off the navman. Press the bottom RH button (with the up arrow or chevron symbol). Switch on while button still depressed.

My nav man worked fine for 2 years but as soon as i donwloaded the so called @update@ this problem accoured. Navman will not take responsibility and i and my friends and family will never buy another navman product again. I think they purposly f***** up my navman by corrupting it with their updates

I have had this same problem took the gray sticker off the back of unit to access sd card. Wiggeled it around and yes straight away problem fixed.

Same problem with mine...'unable to detect internl memory'
I hadnt read the post above re banging the unit but my fix may give the same result, different course of action.
I thought, maybe if a disconnect the battery, let the unit die, then re-connect. (this often works with industrial electronics)
Took the back off and the battery is connected to the circuit board with a connector. Disconnected, left for 5 minutes then re-connect. At the same time i made sure the memory card in there was secure...it seemed to be.
Turned it back on....it works !!!
So, it may have been a poor connection, and the bang everyone is giving their units just re-seats the card or battery connection.
Well worth a try either way...

DO NOT WORY I HAVE JUST READ SOME SOLUTIONS ON THIS TAG WHICH SAYS "GIVE IT A GOOD WACK" AND HONSTLY I CAN NOT BELIVE IT IT WORKS HAHA WEL CHUFFED NICE 1

If u put a new sdc card in it and use the update it will work......without maps.. so the next step is to let this thing read the maps.. i'm trying to figure out which file does this to change the command for it.. any quesses?

The same problem. F20 disassembled and tested internal micro SD flash - no file sistem. Restored file sistem, no errors but it look like no maps because smth wrong with files. Digging inet found that software depends on serial number of navman and micro SD.There is no solution to unlock navman F-series and write another program like iGo, Tom Tom :(. Maybe laiter.