The installed software is not signed.

2. If it is a JAR program, it is usually because of conflicting certificates.

Solution:

1: software signature.

2. Install programs (software/games) directly on the device or replace the memory card.

A solution that Apple iPhone6 App Store can't open;

Many times the App Store can't be opened because of the network connection, so we connect from the mobile phone here.

Connect to a wireless network. Please open the Settings application on the home screen first, as shown in the following figure:

2. Click "WLAN" in the setting list, as shown in the following figure:

3. Then, in the WLAN list, click the "Information" icon on the right side of the currently connected wireless, as shown in the figure:

4. Then, in the wireless network details list, find the DNS column, delete the original address, and fill in11116.

Let's go

5. After the DNS address of the mobile phone is set, please open the background of the mobile phone, exit the App Store from the background, and then watch.

See if you can use the App Store app normally.

6. If the above114.16.5438+04.16.5438+04 can't solve the problem, we can also try this land in 8.8.8.8.

Address.

7. If you can't connect 8.8.8.8's address to the App Store, you can also choose to turn off the wireless at this time.

Open it with mobile phone and mobile network. It is worth noting that if you download apps with traffic, it will hurt Qian Qian.

8. If it still doesn't work, the last resort is to suggest that you change the time and try to open the App Store?

Yes