While Jailbreaking iOS 9 for iPhone, the Installed iOS Public Beta Profile error may occur. However, the steps to fix it are simpler compared to other errors such as Runtime Error, error 0A, error 51... Follow the steps below to fix the Installed iOS Public Beta Profile error.
Not as complex as resolving the Error 0A, users only need to go to Settings => General => Profile and delete the Installed iOS Public Beta Profile on their device to fix this error.
https://Mytour.vn/fix-installed-ios-public-beta-profile-khi-jailbreak-ios-9-3421n.aspx
After deleting the Installed iOS Public Beta Profile, proceed to Jailbreak your iPhone again and ensure the process is correct. After Jailbreaking, you can use tweaks on Cydia to enhance the performance of your iOS 9. If you encounter other issues, you can refer to additional troubleshooting methods on Mytour.vn. Good luck with your successful implementation!