My Apple phone is iPhone 4 version 5.0. 1. Unable to send and receive text messages after prison break. Press "Send" to return to the main interface directly.

There are often flashback software in jailbreak, especially for using unofficial Redsn0w or using the wrong method.

There are several possible reasons for flashback.

1.Cydia conflicts with Chinese system input, so it is suggested to use English system instead.

2. Try to open the original software, and press the instructions on the lower side to see if it flashes back.

3. If you want to jailbreak, first format the phone (with easy all settings and memos), then create a new iphone with Itunes when the boot settings are initialized again, and finally jailbreak (the latest version of official website, not the boot page).

The reason for completely jailbreaking and formatting the new machine is that there are few plug-ins in the new machine, and it is easy to restart after a failure.

If you can make a small suggestion: just after formatting, back up the shsh file with TinyUmbrella for later use. Don't escape, back up shsh.