Performing a manual software upload on M39xx phones

The normal procedure is:
All commands in LD 32!

To check which version of firmware a single M390x phoneset has:

FWVU LL SS CC UU
****M3900 VERSION REPORT****
TERMINAL TYPE = 021
CORE FIRMWARE VERSION = 018
FLASH FIRMWARE VERSION = 032


To print a summary report of firmware versions currently connectet to the switch:

FSUM
.fsum

**M3902 SUMMARY
080 - ON DISK (is for Rel 25.40B)

**M3903 SUMMARY
080 - ON DISK (is for Rel 25.40B)

**M3904 SUMMARY
083 - ON DISK (is for Rel 25.40B)
083 (083 ) - 000026 SETS FOUND
083 (024 ) - 000004 SETS FOUND
047 (024 ) - 000001 SETS FOUND

**M3905 SUMMARY
083 - ON DISK (is for Rel 25.40B)
083 (018 ) - 000055 SETS FOUND
032 (018 ) - 000029 SETS FOUND
024 (018 ) - 000011 SETS FOUND
000 (018 ) - 000001 SETS FOUND
000014 SETS NOT RESPONDING

Important:
Before updating a phoneset, make sure that the phoneset is logged out and during the updating procces do not touch or unplug the phoneset ! It could destroy the complete phoneset!

To initiate conditional download to a M390x phoneset:

FDLU LL SS CC UU

SDL001 STARTING DNLG LL SS CC UU

SDL000 3905(LL SS CC UU ), VERSION 32, MAINT MODE. <--- this takes approximately 10 minutes

During the updating procces (approximately 10 minutes) the phone will show a progress bar on the display.

If the download has been aborted by leaving the overlay you have to restart by entering the command
FDLF LL SS CC UU

To have a complete list of all phones and their firmware you can insert in LD 32
FSUM ALL

You can ask your vendor (as of Rel 25.40B) to update the firmware via pdt.
The latest firmware versions are:

- M3902 -> 8.2
- M3903 -> 8.4
- M3904 -> 8.7
- M3905 -> 8.7
(thanks one234)