Yealink Teams Series

| Troubleshooting Solutions | 111
Firmware and Upgrading Issues
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Fail to upgrade the phone firmware
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The phone does not update the configurations
Fail to upgrade the phone firmware
Do one of the following:
• Ensure that the target firmware is not the same as the current firmware.
• Ensure that the target firmware is applicable to the phone model.
• Ensure that the current or the target firmware is not protected.
• Ensure that the power is on and the network is available during upgrading.
• Ensure that the web browser is not closed or refreshed when upgrading firmware via web user interface.
The phone does not update the configurations
Do one of the following:
• Ensure that the configuration is set correctly.
• Reboot the phone. Some configurations require a reboot to take effect.
• Ensure that the configuration is applicable to the phone model.
• The configuration may depend on the support from a server.
System Log Issues
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Fail to export the system log from a provisioning server (FTP/TFTP server)
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Fail to export the system log from a syslog server
Fail to export the system log from a provisioning server (FTP/TFTP server)
Do one of the following:
• Ensure that the FTP/TFTP server is downloaded and installed on your local system.
• Ensure that you have configured the FTP/TFTP server address correctly via web user interface on your phone.
• Reboot the phone. The configurations require a reboot to take effect.
Fail to export the system log from a syslog server
Do one of the following:
• Ensure that the syslog server can save the syslog files exported from the phone.
• Ensure that you have configured the syslog server address correctly via web user interface on your phone.
• Reboot the phone. The configurations require a reboot to take effect.
Password Issues
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Restore the administrator password