As above mentioned.
Its originally running speednavi, too bad i have lost the original SD card.
suspect the shell is lock in the unit & there is no usb connection to PC to explore it more.
any1 please help, thanks in advance.

I know nothing about this device or software, but from a quick search the speednavi software seems to run on WinCE 5 hardware.

I suspect at least iGO8 will run.

Does anything happen when the 'navigate' button is tapped?

thanks for fast reply.
when no SD card insert, press at GPS button it will prompt for speednavi is missing, check SD card.

It's easy enough to build a SD card with new software, but as the device looks for a specific filename, getting the new software to start is the problem.

In the device settings is there an option to change or setup the nav programme?

there is no path to set the nav programme.
been dismantle the unit & look at the unit mainboard, there is an empty space for USB port, but due to can;t find any information of the board diagram, giving up.

finally i have obtain the RAW image of the SD card, should i upload it to let every1 look at it?

nsxt99 wrote:finally i have obtain the RAW image of the SD card, should i upload it to let every1 look at it?

Yes, if you can. Forums like this only exist because of the excellent contributions of its members.