Huawei P8 - Why Do I Hear Noise in the Downlink During a Phone Call in the Handsfree Mode

decreases. Try listening to the audio about 10 cm away from your phone. If there is no
obvious background noise, your speaker is functioning properly.
2. Try playing the embedded ringtone. If the ringtone is normal, your voice source has
some problems.
3. If the problem persists, take your phone to an authorized Huawei service center to check
whether your phone has a quality problem.
5.27 Why do I hear noise in the downlink during a phone
call in the handsfree mode?
1. When you make phone calls, don't place the speaker too close to your ear.
2. Try playing the music in speaker mode. If the problem persists, take your phone to an
authorized Huawei service center to check whether your phone has a quality problem.
5.28 Why is my phone powered off when I press the
power button?
Check whether the power button is stuck. If yes, take your phone to an authorized Huawei
service center.
5.29 Why can't I create a contact photo?
Temporarily, setting photos for contacts in the SIM card is not supported. You can
synchronize the contacts in your SIM card to your phone and then set photos for the contacts.
5.30 How many contacts can the phone save?
No less than 2000 contacts. The number of contacts that are saved in the SIM card depends on
the SIM card.
5.31 Why can't I make a call when my phone shows I have
4G signal?
Your phone displays networks in the following order of priority: 4G, 3G, 2G.
If there is no 3G or 2G network at your location, your phone will be unable to make calls even
if you have 4G coverage. If this is the case, please try calling from another location.