Follow along with the video below to see how to install our site as a web app on your home screen.
Nota: This feature currently requires accessing the site using the built-in Safari browser.
Habeis probado a calibrar la bateria como pone en el primer metodo aqui:
http://www.htcmania.com/showthread.php?t=367642
A mi en mi skate siempre me funciono. Sino probar el segundo y ya me contais. VICTOR.