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Page 124 of 174 Appendix A: Flash Download procedure
553-3001-216 Standard 5.00 January 2002
4 Based on the quantity of sets and the site situation, determine how the
download will occur:
a. Individual downloads (Use individual commands in LD 32)
b. System download (Use system download command in LD 32)
c. Scheduled download/range download (Use scheduled download
commands in LD 32 and LD 97
5 Issue the appropriate download command.
6 As the download occurs, the set displays the following information:
During a flash download, the M3902, M3903, and M3905 telephones
display messages on the displays at the right. (See Figure 20 on
page 125) Display 1 shows the “Erasing Flash Memory” message along
with blocks written to the second line (each with decreasing contrast).
This is followed by Display 2 that reads “Awaiting Download.” Display
3 flashes the text “Downloading Firmware” on the first line with progress
bars on the second line. When all 24 segments of the progress bars are
displayed as shown, the download is complete. The telephone then resets
and returns to service. All user-controlled parameters, such as screen
contrast, volume settings, and key labels are not affected by the firmware
download. In the event that the firmware download was not successful,
the text “Terminal Out of Service is displayed on the first line. In some
cases, the set erases the flash memory, showing Display 1 followed by
Display 2.