Recovery Mode on Yealink IP phones
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2. Click OK twice to save the settings.
3. Long press and reconnect the power adapter to trigger the recovery mode.
The W90DM/W90B will download and upgrade the firmware from the TFTP server.
You can view the syslog of the TFTP server to check if the W90DM/W90B downloads the firmware
successfully as shown below:
4. Find the current IP address of the device on the DHCP server in the list of registered DHCP clients.
Using Recovery Mode on Yealink IP Phones
(USB Flash Drive)
This section introduces how to perform recovery mode using USB flash drive on Yealink IP phones step
by step.
For MP54/MP56/MP58/VP59/SIP-T58A/T57W/T54W/
T53W/T53/T48U/T48S/T46U/T46S/T43U/T42U/T42S/T41
S/CP920 IP Phones
This section is only applicable to SIP phone series including MP54, MP56, MP58, CP920, SIP-T41S,
SIP-T42S, SIP-T42U, SIP-T43U, SIP-T46S, SIP-T46U, SIP-T48S, SIP-T48U, SIP-T53, SIP-T53W,
SIP-T54W, SIP-T57W, SIP-T58A, and VP59.
The following procedures take the SIP-T46S IP phone for reference.
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