How to fix the expired Apple certificate

Take iphone11, ios13 system as an example, the apple mobile phone certificate expires, it is recommended to renew it, and then re-**, so that it is okay, and the certificate will be regenerated after re-**. The expiration of the Apple mobile phone certificate generally does not affect the use of the mobile phone, but it is just **or APP has a problem, and it is OK to re**. Applications installed through certificates will encounter the problem of dropping the signature, and the application cannot be opened again after the drop.

Ways to temporarily resolve the certificate invalidation issue:

1. Turn on airplane mode and disconnect WiFi from your phone, open "Settings - Safari" in turn, and tap "Clear History & **Data". After the clearing is complete, go back to the desktop and try to open the app that has been dropped, if it can be opened, turn off the airplane mode and use the Internet normally. After doing this, the app still won't open, so rewrite the installation.

2. With the help of the ** tool, add the domain name to the list of blocked hosts, and then use ** to access the network, you can open the application of the dropped sign normally.

Summary. Find the settings icon on the desktop of your iPhone and enter the settings interface.

Go to the settings screen and click on the general options.

Then in the general interface, click on the date and time options.

Then in the date and time interface, we will check the 24-hour clock to enable to solve the certificate expiration problem.

The certificate of the Apple SEC has expired.

Find the settings icon on the desktop of the iPhone, and enter the settings interface. 2 4 Enter the settings interface and click on the general options. 3 4 Then in the general interface, click on the date and time options.

4 4 Then answer the source in the interface of date and time, we will check the 24-hour system to turn on to solve the problem of certificate expiration.

You take a look. That's it, right, I thought there was something wrong with the system.

No, it's okay.

Thanks for the interruption haha.

It's okay, give me a thumbs up, thank you.

Hello, I still have a curious question, why the time was 12 hours before, and I haven't sent it for so long, and now it will prompt.

It's okay to have a problem with the system.

ok ok thank you.

You are welcome. This big brother will still be like this It will pop up on the hail as soon as possible Will it be related to the network of the Internet Xue Gao Que Fan School is campus network will be automatically connected tomorrow.

Nope.

If you get a security warning message such as "Certificate expired" when accessing a ** using Safari, you can try the following steps to resolve the issue: Check the time and date: Sometimes the time and date of your computer system is inaccurate and can cause the certificate to expire error.

You can check and correct the time and date by opening System Preferences >Date & Time". Clear your browser's cache: Sometimes the certificate information stored in the browser is expired or corrupted, which can also lead to an error of certificate expiration.

You can try clearing your browser's cache and history to fix the problem. In Safari, you can clear it by opening the Safari menu > Clear History. Upgrade browser macro:

Some older browsers may not recognize the latest certificate and will need to upgrade the browser version to resolve the issue. Try a different browser: If none of the above fixes the issue, you can try using a different browser to access it, or contact your administrator for help.

It should be noted that the error of certificate expiration when accessing ** may lead to information leakage or security issues, so please be cautious.

Method 1. Turn on airplane mode and disconnect WiFi on your device, open "Settings - Safari" in turn, and tap "Clear History & **Data".

After the clearing is complete, go back to the desktop and try to open the app that has been dropped, if it can be opened, turn off the airplane mode and use it normally online.

Although this method is simple and easy to operate, it is not applicable to all software, if the application still cannot be opened after following the above steps, you can re-overwrite and install.

Method two. With the help of packet capture or ** tool, add the domain name to the blocked hosts list, and then use ** to access the network, and you can open the deleted application normally.

Part 1: What to do with expired iOS certificates?

2. Some certificates require a special account, such as: when developing iOS, if you want to compile on a real machine, you need a development certificate, and this certificate requires a developer account (99 US dollars.

Part 2: How to solve the expiration of the iOS certificate.

1.The new "WWDR Certificate" certificate is installed.

2.Open the keychain, and on the navigation bar, select Show - Show Expired Certificates, and then delete the expired certificates.

3. iOS Apple Signing Certificate Stabilization Method.

1.The installed capacity of the enterprise certificate.

In general, a business certificate.

The book is used for its own internal employees, if the installed base reaches the million level, it will definitely be detected by Apple, and it is very likely to be found to be illegal Apple protocol, so the more applications signed by the enterprise certificate, the more the number of installations, the more likely the enterprise certificate will be blocked.

2.The number of installations of the Senye P12 generated by the enterprise developer certificate. According to past experience, the number of P12 certificate installations should not exceed three computers, otherwise it may feel insecure, which may trigger Apple's security mechanism and lead to the blocking of enterprise certificates.

3.The number of times the enterprise certificate was generated. The repeated generation and revoke of enterprise certificates will also lead to the triggering of Apple's security mechanism, and the search will lead to the closure of the enterprise.