Root access is a must have for Android devices. That’s what I always say. Xiaomi Android device has root access natively actually. However, it is disabled on stable ROM (enabled on beta ROM). Same apply to Xiaomi Redmi 1S. Just load the Security application, then go to Permission. You will find out that Root permission tab is grey out. Luckily, we can re-enable the root access back on stable ROM. And it is very easy to do so.
Root permission tab enabled