We’ve already seen a way to root the Sony Ericsson Xperia Arc and Xperia Play. However that method required the boot loader to be unlocked, which you can do through Sony Ericsson’s boot loader unlocking page. For most who want to root their phone, this isn’t too much of a problem, however some users have stated that they wanted a root method, without having to unlock the boot loader. Fortunately a way has now been found.