ERoot is one of the most popular Android rooting tool for one click root almost any Xperia released on 2011 or runs 4.1.B.0.587 4.1.B.0.431 / 4.1.A.0.562 and 4.0.2.A.0.62 firmware. There is no requirement for downgrading kernel at all. eRoot is originally released in Chinese language but there's no doubt using it since you have to click on single button for whole rooting process. There are so many pirated eroot English versions but we do not recommend to use them. Eroot requires Windows PC to run and no Eroot apk is available currently for root devices it self.
Eroot 1.3.4 is the latest version at the moment. Please check following sections of device preparation, eroot step by step rooting guide and compatible devices list before your proceed. You can download eroot latest version below.