Firmware Upgrade; Firmware For Each Phone Model Firmware Upgrade Configuration - Yealink SIP-T5 Series Administrator's Manual

Firmware Upgrade

There are two methods of firmware upgrade:
Manually, from the local system for a single device via the web user interface.
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Automatically, from the provisioning server for a mass of devices.
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Note : We recommend that the devices running the latest firmware should not be downgraded to an earlier firmware version.
The new firmware is compatible with old configuration parameters, but not vice versa.
All configurations will be cleared on the T23P/T23G/T21(P) E2/T19(P) E2 phones when downgrading the phones from firm-
ware version 84 to 83.
Topics
Firmware for Each Phone Model
Firmware Upgrade Configuration
Firmware for Each Phone Model
You can download the latest firmware online:
port.yealink.com/documentFront/forwardToDocumentFrontDisplayPage.
The following table lists the associated and latest firmware name for each device model (X is replaced by the actual
firmware version).
IP Phone Model
T57W/T54W/T53W/T53
(T5W firmware unified)
T48U/T46U/T43U/T42U
(T4U firmware unified)
T48S/T46S/T42S/T41S
(T4S firmware unified)
T48G
T46G
T42G
T41P
T40P
T40G
T29G
T27G
T23P/G
T21(P) E2
T19(P) E2
CP920
http://sup-
Firmware Name
96.x.x.x.rom
108.x.x.x.rom
66.x.x.x.rom
35.x.x.x.rom
28.x.x.x.rom
29.x.x.x.rom
36.x.x.x.rom
54.x.x.x.rom
76.x.x.x.rom
46.x.x.x.rom
69.x.x.x.rom
44.x.x.x.rom
52.x.x.x.rom
53.x.x.x.rom
78.x.x.x.rom
Firmware Upgrade
Example
96.85.0.10.rom
108.84.0.30.rom
66.84.0.80.rom
35.83.0.30.rom
28.83.0.30.rom
29.83.0.30.rom
36.83.0.30.rom
54.84.0.60.rom
76.84.0.60.rom
46.83.0.30.rom
69.84.0.80.rom
44.84.0.60.rom
52.84.0.60.rom
53.84.0.60.rom
78.84.0.80.rom
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