Thank you but it returns: Cannot create echo /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq: Permission Denied When doing: echo 900000 > /sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq So strange: I buy my phone, install just rootsh, and play with it , no problems. No, i reflash, the same image, and i'm having a lot of problems. One more time, help me people..i'll appreciate a lot