What if I can't find an operator in the iPhone settings? Why does it always show no service?

IPhone6 no signal operator has been showing that it is searching, which is mainly caused by poor contact of sim card.

There are also the following types of failures that will cause the mobile operator signal to be unrecognizable.

Fault identification and solution of iPhone non-signal operator

1. First, confirm whether it is a SIM card problem. Restart the phone and re-insert the card. After all these steps are useless, find the phone to confirm whether the SIM card is broken. If there is still no response on other mobile phones, the card is broken and needs to be reissued. If the SIM card occasionally has a signal and occasionally has no signal, it is caused by poor contact of the SIM card. You can put a small piece of paper at the bottom of the SIM card to stabilize contact and solve problems.

2. Second, restore the factory settings, the mobile phone can't read the SIM card, and the baseband (a BIOS responsible for communication) has problems. When the mobile phone system is upgraded, swiped or poisoned, if the baseband is not brushed well or the virus destroys the baseband, there will be faults such as poor signal or no SM card. You can try to restore the factory settings and back up first, such as address book, SMS, photos, etc. After the backup, you can go to the setting center to restore the factory settings.

3. Third, swipe your phone. After the above method, the SIM card cannot recognize it. You can try to refresh the latest system version to restore the SIM card signal. The operation tutorial is as follows:

① Step 1: Back up the important information of the mobile phone.

② Step 2: Download and install the latest version of itunes software on the computer, and open itunes after installation.

③ Step 3: Connect the iPhone to the computer with a data cable, and you will hear the prompt of successful computer connection.

④ Step 4: Please turn off the iPhone first, and you will hear the prompt that the computer connection is unsuccessful.

⑤ Step 5, please press and hold the ON/OFF key and the home key at the same time until the first 10 second. Please immediately release the ON/OFF key and keep pressing and holding the home key.

⑥ Step 6: At this time, iTunes will automatically start and prompt for recovery mode (iPhone will always keep a black screen). Then you can press and hold the shift key on the keyboard, click "Restore" and select the corresponding firmware to restore.

4. Fourth, if the reading chip of the iPhone card slot fails, the device can be sent to the Apple repair shop for free maintenance during the warranty period. Free maintenance needs to bring faulty equipment and purchase invoices, and Hong Kong Airlines and Qantas Airlines need to bring copies of traffic records at the time of purchase for free maintenance. During the non-warranty period, the equipment can also be sent to Apple repair shop for repair, but the corresponding maintenance fee needs to be paid.

The series of smartphones IPhone developed by Apple is equipped with the iOS mobile operating system developed by Apple. The first generation of iPhone was released on June 9, 2007 by Steve Jobs, then CEO of Apple, and officially released on June 29 of the same year.

On September 20 13, the seventh generation iPhone 5S and iPhone 5C were released, and they were officially released on September 20 of the same year. The eighth iPhone 6 and iPhone6 Plus were released on September 20 10 14. 15 September 1am 15 Apple will hold a 20 15 autumn conference to release three new iphones of different models, namely, the iPhone 6S and the iPhone 6S Plus.

On March 2, 20 16/morning 1 day, Apple held the spring conference of 20 16 to release the iPhone SE, instead of the iPhone 6C mentioned on the Internet.

IPhone 7 was released on the morning of September 8th, 20 16, Beijing time, at the 20 1 6 Apple Autumn New Product Launch Conference held in Bill Graham Municipal Auditorium, San Francisco, USA.

2016165438+1October 25th, Apple updated the domestic warranty policy of iPhone in official website, instead of replacing it.

2065438+On March 2, 20071day, Apple launched the special editions of iPhone 7 and iPhone 7 Plus, which have a moving red appearance and the starting price is 6 188 yuan. ?

On September 20 17 13, Apple introduced a new generation of products, namely iPhone 8 and iPhone 8 Plus, iPhone X and iPhone X Plus.