Application of Smart Phone

If it has been deleted, either refresh the system, if your mobile phone system has a backup, you can restore it. If not, you can still use the picture viewing software and contact management software, but it may be different from the original one. Generally, before deleting the system software, determine whether you have a better substitute. If yes, it can be deleted. I also deleted the SMS, just because I hate the conflict of the system itself after installing Kawara Tsutomu SMS, so I deleted it. Not yet!