Iphone4s jailbreak version has become a genuine mobile phone after upgrading to iOS9.3.2, which is not applicable (it can answer the phone, but the information can't.

You can't upgrade directly on your mobile phone after jailbreaking. After jailbreaking, the mobile phone can connect to itunes and click the recovery mode to reinstall the mobile phone version upgrade. The method is as follows:

1. Download the latest version of itunes first. Remember, it needs to be the latest version, otherwise it may lead to unknown errors when reinstalling. Open the phone after installation, connect it, click the phone icon in the upper left corner, and click Backup after entering, because reinstalling will erase all the contents of the phone;

2. After the backup is completed, select the restore option button on itunes, and click OK to restore in the pop-up selection box;

3. Next, itunes will pop up a page, prompting that all contents will be erased and will be verified and restored with the Apple server. Click OK, and iTunes will automatically download the phone firmware. When the verification and file extraction are completed, iTunes will automatically reinstall the downloaded firmware version for the mobile phone, and then reactivate the mobile phone after the installation is successful.