Maps 3.01 crashes during navigation and postcode s...

Question

I have a N96 which I upgraded to latest F/W and then tried to use Maps 3.01. I immediately started getting problems with maps crashing the phone when I was trying to use Navigation. I trawled the web looking for answers after getting very little help from Nokia support. So I resolved myself to solving it myself.
I tried the trick of uninstalling Maps 3.01, the licence manager etc, deleting the folders off the "Mass Memory". It was in doing this that I noticed a problem that I think is the cause of these navigation crashes. The CITIES folder contains the diskcache folder, which in turn contain various other folders, 0-9, a-f and others. When I tried to delete the CITIES folder, the diskcache\0\4 folder could not be deleted due to a file called "5[][][][][].[][][]". I tried various methods to delete this file and the folders at all levels that "owned" it, but none worked (e.g. phone's "file manager", Windows Explorer via PC Suite). I also tried the  Signed_MapsMainSettingsDefault.zip.txt  from ferrograph
After recently struggling with a trip where navigation crashed too many times to count, I tried one more time, but using a different tactic. I uninstalled Maps3.01, then deleted all I could from the CITIES folder (excluding CITIES\diskcache\0\4\5[][][][][].[][][], which still could not be deleted ), then I renamed CITIES to CITIESold and tried installing Maps 3.01 again. I checked the "mass memory" folder and CITIESold was still there, but a new folder "cities" in lowercase was also there. I checked cities\diskcache\0\4 and this contains a file named 5940.cdt.
I have tried using navigation 5 - 6 times since doing this, purposely changing routes from the recommended one, and no crashes have happened.
Another thing that has now started working is postcode searches offline. Prior to renaming the CITIES folder, the postcode search simply would not work... now it works every time.
Hope this helps.
If anyone from Nokia is reading this... perhaps you can give us some info on how to delete the CITIESold folder??? It's effectively empty, but doesn't belong there
PS I have posted the above as a reply to another thread, but thought that if this is the solution, more people would like to know about it.

Answer 1

If anyone from Nokia is reading this... perhaps you can give us some info on how to delete the CITIESold folder??? It's effectively empty, but doesn't belong there
No they dont read .
No need to delete Cities folder .
Here is what i would try
Remove maps software   and remove maps
Install the latest maps software   then use maps loader to download the latest required maps .
   jje