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Page 238 of 504 M3900 Flash Download
553-3001-367 Standard 3.00 August 2005
25.30 Ye s Phase I,
Phase II
Follow the standard software order
process.
Phase III Note: This is not a standard
process. M3900 Phase III phones
should not be configured on a
Release 25.08 system.
1. Follow the Small System
Release 25.08 to Release 25.30
procedure for Phase I and Phase II
telephones (above).
The Release 25.30 contains
M3900 Phase I firmware for M3905
telephones and Phase II firmware
for M3902, M3903, and M3904
telephones. Follow the Flash
Download process to downgrade
the M3900 Phase III phones to
Phase I/II firmware.
Table 37
Flash Download procedure matrix for Small Systems (Part 10 of 18)
Present
software
Upgrade to
software
Keycode
required
M3900
telephones
Upgrade steps