Upgrading WIN CE version of my GPS

[wowyogi]

hi all,

Glad to be on gpsunderground. I have a Teletype WorldNav GPS I bought way back in 2007. It has win ce 4.2 in it. I installed NDrive on it with Indian maps, courtesy gpsunderground threads. NDrive seems to be very stringent of GPS signal and the GPS locks I get are too few and far in between. I am thinking of upgrading my GPS OS to Win CE 5 or 6 since most GPS software seem targeted for these recently. Before I throw away this GPS I was just wondering if its possible to upgrade. I read somehwere else that the core OS is dependent on the vendor and they will have to provide the same. Is that true? Is there no way I can upgrade? I installed this great set of tools from the thread How to unlock any gps wce 4.2/5/6 and now I am able to see underlying windows in the device which was earlier masked. Any tips anyone?

[dohcacr]

The OS is usually burned into a rom that is soldered to the gps circuit board. That makes it very impractical to change the operating system, unless the vendor has built a re-flashing interface into the device.

[mece]

The OS is usually burned into a rom that is soldered to the gps circuit board. That makes it very impractical to change the operating system, unless the vendor has built a re-flashing interface into the device.

i want to know the wince is the software or hardware?

[dohcacr]

i want to know the wince is the software or hardware?

Actually, it's usually firmware, which is somewhere in between hardware and software. A rom is a integrated circuit device(hardware), that contains a memory that can be written to by a special device . The rom builder or manufacturer, writes wince (software OS) to the rom at the factory, and from that point on the wince software is a permanent part of the hardware rom. There are exceptions to this, such as android tablets that have the ability to "flash" certain parts of the device rom software. In that case, the roms are still considered firmware. There are some gpses that have the ability to re-flash the firmware, but that flash is usually limited to the manufacturers add-on software(ie, menus, file viewers, music players) not wince.

[avantg4rd]

Actually, it's usually firmware, which is somewhere in between hardware and software. A rom is a integrated circuit device(hardware), that contains a memory that can be written to by a special device . The rom builder or manufacturer, writes wince (software OS) to the rom at the factory, and from that point on the wince software is a permanent part of the hardware rom. There are exceptions to this, such as android tablets that have the ability to "flash" certain parts of the device rom software. In that case, the roms are still considered firmware. There are some gpses that have the ability to re-flash the firmware, but that flash is usually limited to the manufacturers add-on software(ie, menus, file viewers, music players) not wince.

For the unflashable firmware, is there any chance to modify the map ?

[zwiks]

Witch cable are you using for the upgrade ?