Apple's performance in system, ecology and chip is not much introduced, but communication is one of Apple's weaknesses, probably because patents or related technologies are not precipitated enough. We don't have much analysis on this point. Next, I will talk about how to make the dual-card iPhone signal better.
The signal coverage of the three major operators in each region is different. For example, if you are in the B area of A city, the mobile signal is particularly good, but in the C area of A city, the mobile signal is not as strong as that of Unicom, so the SIM operator should try to choose according to the actual use location.
Take my city as an example. In most places, the mobile and Unicom signals are better, but the telecommunications are almost the same, so we locals rarely use telecom cards.
We all know that the signal of iPhone is really "lost" relative to Android, and there will be a difference between using bare metal and wearing a mobile phone case. With the metal mobile phone case, the signal plummeted. Through personal experience, we can know that the metal mobile phone case has an influence on the mobile phone signal, and the impression is obvious. Interested friends can try it.
Aside from the iPhone with single card and single standby, the second card signal of dual-card iPhone is really not so good. In some cases, the signal of the second card will also affect the signal of the first card, which may be a system BUG or a hardware problem, but the only solution at present is to use the dual-card iPhone as a single-card mobile phone, and there is no other way.
The old users who use the iPhone have been "doting" on the signal. In Apple's words, "iPhone is just a carrier". What is this? People's systems and ecology, as for communication functions, are just arranged by feet, so if you use the iPhone, you don't need too many signals, just use it, otherwise what can you do, right?
Perhaps for many people, the current iPhone uses dual card dual standby, so the current iPhone signal is weak because the mobile phone uses dual card dual standby. In fact, it's not that the signal of iPhone has never been better, just because of several problems of iPhone itself.
The first is because of the baseband used by the iPhone. In the past, the iPhone used Qualcomm's records, and then used Intel's baseband for a while, so the difference between Qualcomm's baseband and Intel's baseband actually affected the signal strength of the iPhone.
The second reason is that the processor used by iPhone does not have integrated baseband, but uses external baseband. Without the integrated baseband, the signal performance of the mobile phone will naturally not be stronger, and the external baseband will affect the signal capability of the mobile phone.
For the iPhone, the signal difference itself is the iPhone's problem. In fact, we want to solve the signal problem of iPhone, but we can't find a better way. Unless the iPhone changes its external baseband mode, its signal strength may not change completely.
The best way to solve the iPhone signal is to use the backup machine. Or choose a relatively good operator, and it is more popular to use a better operator and a local operator base station. May improve the cell phone signal!
Is there something wrong with the Apple signal?
I think this kind of thing is a myth. Every generation has bought it since Apple 3, and Android is also in use. I think the signal is quite satisfactory, neither the strongest nor the worst. Some people can't afford it, so they are black. . . . Including battery life, Apple11pmax12pmax basically hangs 95% Android, right?
Now use 1 1, and the signal is really bad. Even if only one card is used, the 4g network is two grids and three grids most of the time. Sometimes, when you jump to one box, a small part of the time is full, or the usual living environment. It is suggested that this calling card is mobile, not an Internet card. China Mobile is now closing its 3g network, while China Unicom has no 2g network.