You are right.Unfortunately, when rooting the device, some banking, life and car insurance applications, as well as airline ticket purchases here in Brazil do not work with the rooted device. I rooted mine specifically so I could change the keyboard file to accent directly on it like a regular computer (I created a new keyboard apk). Then I removed the root and left it unlocked, so that I can install a compiled kernel in the future to solve problems like the hdmi problem I mentioned here.