User Manual

BTHF304 User Manual
. 23
6. Important Messages and Frequently Asked Questions
Q1. Red LED blinking：
Low battery indicator; please recharge your battery as soon as possible.
Q2. Can't power up the device after charging more than 20 minutes：
For the first time, the device should be charged at least 40 minute prior tuning on, it is recommended that the
battery should be fully charged before using the device.
Q3. Without charging indicator：
When the battery runs off or the handsfree has not been used for a while, the Red LED may take a while to
light up after the charger connected.
Q4. Can't hear anything on handsfree： you should check the followings
 Handsfree is power on
 Handsfree has paired with a handset
 Handsfree has connected with a handset (except the handset only supports Headset Profile
）
 Handsfree and handset are within 10m
 Handsfree and handset have good single strength
Q5. Does the paired handsfree or the paired handset need to be repaired after power off：
No. Please note that for the handset supports handsfree profile, the handsfree and the handset must be
connected first before making/receiving. Refer section 2.4.3 for details.
Q6. Voice dialing does not work
：
First check whether or not the handset supports voice dialing function. Then make sure you have recorded the
voice tag. Please note that noisy environment may affect voice dialing.
Q7. How can I upgrade my bluetooth device to the most updated software version
Please refer the section 3 for details.
If you don't have enough knowledge to handle this upgrade, you can recommend the device to your appointed
local service center, and let the service personnel to do so.
If something wrong when you upgrade it by yourself, you would also recommend the device to your local
service center to ask for help.
Q8. If the device can not be power on
There is a reset button
on the left. Resetting the device with a sharp pin can bring it back to normal operation.