Nokia 9000i Service Manual page 223

After Sales
Technical Documentation
3. – Flash Utilities
This menu provides functions to access the PDA Flash memory.
3.1 – Software Update
This menu provides means to update the software in the PDA's Flash
memory from a file on the disk in the host. The user is expected to give
the Name of the Update, i.e. the name of the image file that will be
programmed to the Flash memory of the target PDA. The name of the file
must be given without extension. The service software gets the
extensions of the header file and the image file from the PDA initialization
file.
The Software Update reads the image file, sends it to the target in blocks,
erases the needed blocks of the Flash, programs them and locks them.
After the image is programmed, the updated memory area is check–
summed and the result is compared to the one given in the header file.
The memory area between 3FFFC00h – 3FFFFFFh is not included to the
area, where the checksumming is done.
The output from the target shows the following:
whether the buffer filling was successful
whether the Flash erasing was successful
whether the Flash programming was successful
whether the Flash locking was successful
whether the Flash check summing was successful
Amendment 1 04/97
RAE/RAK–1N
Service Software
Page 7– 65