When pairing a device for the first time after purchase or after initializing or repairing the headset, turn on the
headset and put the headset enter pairing mode. To pair a second or subsequent device, press and hold CallCall
ControlControl button on the headset for about 5 seconds to enter pairing mode.
When pairing a device once again after initializing or repairing the headset, you may be unable to pair it if it
retains pairing information for the headset (smartphone or other devices). In this case, delete the pairing
information for the headset from the device and pair them again.
Restart the connected device such as a smartphone or a PC you use, and pair the headset and the device again.
Reset the headset.
Initialize the headset, and pair the headset and the device again.
Unable to make a Bluetooth connectionUnable to make a Bluetooth connection
Check that the headset is turned on.
Check that the Bluetooth device is turned on and the Bluetooth function is on.
If the headset automatically connects to the last connected Bluetooth device, you may fail to connect the
headset to other devices via Bluetooth connection. If this is the case, operate the last connected Bluetooth
device and disconnect the Bluetooth connection.
Check if the Bluetooth device is in sleep mode. If the device is in sleep mode, cancel the sleep mode.
Check if the Bluetooth connection has been terminated. If terminated, make the Bluetooth connection again.
If the pairing information for the headset has been deleted on the Bluetooth device, pair the headset with the
device again.
Reset the headset.
Initialize the headset, and pair the headset and the device again.
UpdateUpdate
If any of these messages appear during the software update, follow the instructions provided to continue with the
update.
Possible CausesPossible Causes
If any of the issues above occur, the following conditions might cause the update to stop before it completes.
The headset and mobile device have an unstable connection.
The headset or mobile device has a low battery.
There is signal interference, such as from a wireless LAN or other wireless devices (Only MP50).
Troubleshoot IssueTroubleshoot Issue
Turn off power to all devices connected to the mobile device being used for the update.
Turn off the mobile device. Then turn it back on.
Close the Yealink USB Connect.
Open the Yealink USB Connect again.
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