AppendixA: Flash Download procedure Page 115 of 174
M3900Series Meridian Digital Telephones Description,Installation and Administration
Release 2 Note: Thisis not a standard process.
M3900Release 2 phones should not
beconfigured on a Release 24.2x
system.
1.Follow the small system Release
24.2xto Release 25.08 Reissue
procedurefor Release 1
telephones(above).
The Release 25.08 Reissue
containsM3900 Release 1
firmware.Follow the Flash
Downloadprocess to downgrade
theM3900 Release 2 phones to
Release1 firmware
25.15
Re-issue
Yes Release 1;
Release 2
Followthe standard software order
process.
25.08 25.08
Re-issue
No Release 1 1.Download so ftwarefrom the
web.
2.Follow “PSDL Installation
Procedure”on page 142.
3.Install manufactured patches
4.Download firmware to sets,
followingthe Flash Download
procedure.
Table 1 5
FlashDownload procedure matrix for small systems (Part 2 of 5)
Present
software
Upgradeto
software
Keycode
required
M3900
telephones Upgradesteps