iphone6 poor call quality after turning on 4g, what s going on, thank you!

1.The TD-LTE used by mobile 4G is voiceless, and if you play**, you can only use data transmission (the same as surfing the Internet), or use 2G and 3G networks. Therefore, when the signal is not good, the mobile phone will switch between 2G, 3G, and 4G data differently, and the call quality will naturally be poor.

2.When you hit **, the "4G" in the upper left corner of your iPhone will disappear. And when the call is ended, the word "4G" will appear immediately, which is due to the above reasons.

Hello. When you turn on 4G, the signal sometimes shows 1 bar. The right side shows 4G, which is a 4G signal.

At this time, you will find that the signal is full, this is because he has changed the frequency band, it should be reduced to 2G signal, I estimate that his frequent change leads to poor signal. If it affects the use you can turn off the 4G option inside the cellular. At this time, it will become a 3G signal, the network speed is acceptable, and the call quality is OK.

1.Settings -- General -- Reset -- Reset Network Settings.

3.Turn on airplane mode for five seconds and then turn it off. Let's see if your signal is full health resurrection.

Hello, are you just opening 4G, if so, there may be this problem, it will be fine after a while. Hope, thank you.

[Answer]:

This happens to a lot of people.

Mine is the same, when the network is not turned on normally, the signal has more than 4 bars, which is basically normal, but as soon as you turn on the 3G or 4G Internet access, the letter.

The number is only one box, call ** to 10086 to complain, he said that our signal has no conflict, it is your mobile phone problem, or the card is asked.

Question,So I changed to a new 4G card,The effect is the same,After I found out,IPNONE6 should have 3G,4G signal,When the display is not a mobile phone signal,But a network signal,The network signal is weak understandable,But the mobile phone signal must not be weak,Because of my electricity。

Words contact is important, proof from**? This is my point of view, because when the phone is connected to 4G, there is only one bar of signal, dialing.

10086, the mobile phone automatically turns off 4G and calls, at this time the signal is immediately full, but as soon as it hangs up**, 4G will be connected immediately, and a grid signal will be displayed immediately, no matter which ** is dialed, as long as it is dialed, the signal is full.

Expand]:Solution]:

1.Settings -- General -- Reset -- Reset Network Settings.

3.Turn on airplane mode for five seconds and then turn it off. Let's see if your signal is full health resurrection.

Mine is the same, when the normal network is not opened, the signal has more than 4 grids, basically normal, but as soon as you turn on 3G or 4G Internet access, the signal is only one grid, hit ** to 10086 to complain, he said that our signal has no conflict, is your mobile phone problem, or the problem of the card, so I changed a new 4G card, the effect is a bird, and then I found that IPNONE6 should have a 3G4G signal, the display is not a mobile phone signal, but a network signal, the network signal is weak can be understood, But the mobile phone signal must not be weak, because my **contact is very important, from the **proof? This is my point of view, because when the mobile phone is connected to 4G, there is only one grid signal, dial 10086, the mobile phone automatically turns off 4G and talks, at this time the signal is immediately full, but as soon as it hangs up, 4G will be connected immediately, and a grid signal will be displayed immediately, no matter which ** is dialed, as long as it is dialed, the signal is full.