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Appendix A: Flash Download procedure Page 119 of 174
M3900 Series Meridian Digital Telephones Description, Installation and Administration
Table 16
Flash Download procedure matrix for large systems (Part 1 of 3)
Present
software
Upgrade
to
software
Keycode
required
M3900
telephones
Upgrade steps
24.25 25.08
Re-issue
Yes Release 1 1. Call Nortel Networks technical support
to find out how to receive an upgrade.
• On Option 51C CP2 systems, a
DRAM upgrade from 16 to 32
Meg is required.
• An upgrade from MAT 6.5 is
required.
2. Follow the PSDL Installation
Procedure (see “PSDL Installation
Procedure” on page 142).
4. Install the manufactured patches.
5. Downloadthefirmwaretothe
telephones, following the Flash
Download procedure.
Release 2
Note: This is not a standard process. There
should not be M3900 Release 2 telephones on
a Release 24.2x system.
1. Follow large system 24.2x to 25.08
Re-issue procedure for Release 1
telephones (above). The 25.08 Re-issue
contains M3900 Release 1 firmware.
Following the flash download process
downgrades the M3900 Release 2
telephones to Release 1 firmware.
25.15
Re-issue
Yes Release 1;
Release 2
Follow the standard Software order
process.