ojo al primer comentario
deberias aclarar que hay que tener cuidado con galaxy s2, note, s3 en el post, acabo de leer esto en la pagina de xda de esta app
WARNING!
There are some devices affected by BrickBug. Samsung Galaxy S2 and Samsung Galaxy Note are known to have it. There are also reports that some Acer A210/A211 are affected too. There is a Got Brickbug? app to test your device, but it is only intended for Samsung users. BrickBug means DEATH of your device if you try LagFix!
asi que si algun infortunado pone esta app con kernel stock adios celular