Recovery Mode on Yealink IP Phones

Overview

This guide shows how to use recovery mode to get your phone ready when it fails to start up. Yealink IP phones support recovery mode using TFTP protocol only.

Generally, when a Yealink IP phone is powered and connected to the network properly, it will start up successfully and get ready for you to use. In case, the IP phone is accidentally powered off when upgrading, the system data in the flash may be damaged and this makes the IP phone fail to start up. Therefore, we strongly recommend that do not unplug or remove the power when the phone is updating firmware or configurations.

Getting Started

Before using recovery mode to get the IP phone ready, the following steps are required:

• Preparing the Firmware and other Resource Files
• Configuring the TFTP Server

Preparing the Firmware and other Resource Files

For the firmware and other resource files, you can ask your Yealink reseller or go to Yealink Technical Support online: http://www.yealink.com/DocumentDownload.aspx?Cateld=142&flag=142.

Different phone models require different resource files to be used for recovery mode. Some just need the firmware, while others need extra files like ".bin" or ".rfs” in addition to firmware.

The file name of the firmware used for recovery mode is strictly required. For example, to use recovery mode on SIP-T28P IP phones, you must rename the firmware file as T28.rom.

For more details about the firmware name and required resource files, refer to the following table:

Configuring the TFTP Server

This section shows how to configure a TFTP server for Windows system using the tftpd32 application. You can download the tftpd32 application online: http://tftpd32.jounin.net/tftpd32_download.html. If there is a TFTP server installed on your local system, you can skip this section and go to the next.

Procedures:

1. Create a TFTP root directory on the local system.
2. Place resource files to this root directory.
3. Double click the tftpd32.exe to start the application.
4. Click the [Browse button] to locate the TFTP root directory from the local system.
5. Select the local IP address from the pull-down list of Server interface. Take a note of the server IP address (e.g., 10.2.11.123) which is used at the later stage.

The TFTP server application window (tftpd32) displays:

Current Directory: [directory path]
Server interface: [IP address]
Tabs: Tftp Server, Tftp Client, DHCP server, Syslog server, Log viewer
Columns: peer, file, start time, progress

Using Recovery Mode on Yealink IP Phones

This section introduces how to perform recovery mode on Yealink IP phones step by step.

For SIP Phone Series

The section is only applicable to SIP phone series including SIP-T19(P) E2, T20P, T21P E2, T22P, T23P/G, T26P, T28P, T29G, T32G, T38G, T41P, T42G,T46G, T48G,T60G, T61(P/G), T65P, T66 P/G and T68.

The following procedures take the SIP-T28P IP phone for reference.

Procedures:

1. Long press the [speakerphone key] and reconnect the power adapter to trigger the recovery mode. Do not release the [speakerphone key] until the recovery mode wizard appears on the phone LCD screen.

Note: For CP860 and VP530, you need to long press the specified soft key (the second from the left on the phone) since there is no speakerphone key.

2. Enter the desired values in the IP Address, Netmask, IP Gateway and TFTP Server fields respectively. The IP phone must be configured in the same subnet as the TFTP server.
3. Press the [OK button] to complete the recovery mode. The IP phone will download and upgrade the firmware from the TFTP server. After upgrading, the IP phone will initialize successfully and get ready for use. The LCD screen prompts "Initializing...Please Wait" when upgrading successfully.
4. If the IP phone fails to upgrade, the LCD screen will indicate the failure. You need to check and make sure:
   • The connectivity between the TFTP server and the IP phone works well.
   • The resource files are correctly renamed and placed to the TFTP root directory.
   • Repeat the recovery mode procedures to try again.
   The LCD screen prompts "Update Fail...Please reboot" when failing to upgrade.
5. Press the [OK button] to verify the current firmware version after upgrading successfully.

For VCS (Video Conferencing System) Series

The section is only applicable to VCS series including VC400, VC120 and VC110. The following procedures take the VC400/VC120 for reference.

Procedures:

1. Long press the recessed [Reset key] (Use the tip of a pen to hold the reset key) and press the [OK button] on the codec to trigger the recovery mode. Do not release the [Reset key] until the recovery mode wizard appears on the display device.

Note: For VC110, you need to long press the [Reset key] and reconnect the power adapter to trigger the recovery mode.

2. Enter the desired values in the IP Address, Netmask, IP Gateway and TFTP Server fields respectively. The IP phone must be configured in the same subnet as the TFTP server.
3. Press the [OK button] on the remote control to complete the recovery mode. The video conferencing system will download and upgrade the firmware from the TFTP server. After upgrading, the video conferencing system will initialize successfully and get ready for use.
4. Press the [OK button] on the VCP40 phone to verify the current firmware version after upgrading successfully.

For W52P/H Base

For W52P/H base, there is no screen to show information for you. The W52P/H base uses 192.168.0.100 as its default IP address, so you need to configure a static IP address for your local PC where you have the TFTP server installed.

Procedures:

1. Configure the static IP address on your local PC. It must be configured as below:

The IP address configuration on the local PC should be:

IP address: 192.168.0.23
Subnet mask: 255.255.0.0
Default gateway: 192.168.0.1

2. Click the [OK button] twice to save the settings.
3. Long press the [speakerphone key] and reconnect the power adapter to trigger the recovery mode. Do not release the [speakerphone key] until three LED indicators ([LED 1], [LED 2], [LED 3]) are all turned on in turn.

The W52P/H base will download and upgrade the firmware from the TFTP server. You can view the syslog of the TFTP server to check if the W52P/H base downloads the firmware successfully as shown below:

TFTP Server Syslog Example:
Connection received from 192.168.0.100 on port [port number] [timestamp]
Read request for file <W5X.bin>. Mode octet [timestamp]
OACK: <timeout=5,blksize=1468,> [timestamp]
Using local port [port number] [timestamp]
<W5X.bin>: sent [number] blks, [size] bytes in [time] s. O blk resent [timestamp]
Connection received from 192.168.0.100 on port [port number] [timestamp]
Read request for file <W5X.rfs>. Mode octet [timestamp]
OACK: <timeout=5,blksize=1468,> [timestamp]
Using local port [port number] [timestamp]
<W5X.rfs>: sent [number] blks, [size] bytes in [time] s. O blk resent [timestamp]
Connection received from 192.168.0.100 on port [port number] [timestamp]
Read request for file <W52P.rom>. Mode octet [timestamp]
Using local port [port number] [timestamp]
<W52P.rom>: sent [number] blks, [size] bytes in [time] s. O blk resent [timestamp]

4. After a handset is registered, press the [OK button] on the handset to verify the current firmware version.

Customer Feedback

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