Having processed the upgrade script file, the software determines that the name of the boot code file in the phone does not match that in the upgrade script. The script specifies the name of the new file to load.
The phone displays the file name and the number of kilobytes loaded.
The phone displays Saving to flash while the new boot file is stored in its flash memory. The percentage of the file stored and the number of seconds that have elapsed are shown. This will usually take longer than it took to download the file.
The phone displays Restarting as it prepares to reboot using the new boot file.
The phone displays Initializing.
While the new boot file is uncompressed into RAM, the phone displays Loading. Since this takes a while, asterisks, then periods, then asterisks are displayed on the second line to indicate that something is happening.
When control is passed to the software that has just loaded, the phone displays Starting.
The phone displays Clearing whilst the flash memory is erased in preparation for rewriting the code. The percentage of memory erased and number of elapsed seconds are also shown.
Updating is displayed whilst the boot code is rewritten. The phone also displays the percentage of boot code rewritten and the number of elapsed seconds.
When the new boot code has been successfully written into the flash memory, the phone resets so that the status of the phone application files can be checked.
