Hi. I have heard from credible sources such as iDownloadBlog and ModMyI that the Pangu jailbreak for iOS 7.1.0 and 7.1.1 is safe. I have also used it on my iPhone 4s and iPod 5 and have not had any problems. I am surprised with how smoothly the updating and rejailbreaking and reinstalling all my packages went. However ,there is one thing I did immediately after jailbreaking and I think you should do it as well to avoid problems in the future or to fix problems you are having now. Sources like iDownloadBlog and ModMyI say that Even if you uncheck the box to install the pirate store, Pangu still installs a package called PPSync. It is a package that is supposed to be for installing pirated apps, but it was badly programed and therefor it can cause problems like your device respringing and home screen icons going missing. You should remove the PPSync package. Even if you do not see it in the installed section of Cydia, it is on your device. However, uninstalling it from Cydia is not the correct way to do it anyhow. If you uninstall it from Cydia, it is only partially removed. To completely remove it, add the repo http://cydia.angelxwind.net. When you are done it will show up as Karen's Pineapple in your sources list. Then install the package from that source called complete PPSync Remover. When it is installing it will remove PPSync from your device. I just left the PPSync remover package and the source it came from installed and have had no problems with the Pangu jailbreak. I am not sure if it is necessary to leave it installed, so I left it installed just incase PPSync tries to reinstall itself or something. You do not need to run Complete PPSync Remover, it works automatically. After doing this, you should have no problems with the Pangu jailbreak either.