this is my kernel configuration : # minimum frequency to use MINFREQ=125 # maximum frequency to use MAXFREQ=1150 # list of frequency configurations: each "frequency:volt,dsprate" FREQS="0:30,90 125:12,90 250:25,180 500:40,360 550:54,400 600:60,430 720:60,520 805:60,600 850:60,600 900:60,600 950:60,600 1000:60,600 1100:72,600 1150:72,600" SMARTREFLEX_VDD1=0 SMARTREFLEX_VDD2=1 GOVERNOR=ondemand UP_THRESHOLD=95 SAMPLING_RATE=300000 IGNORE_NICE_LOAD=1 POWERSAVE_BIAS=0 fells like new phone , the downside :the battery goes faster , use of messenger(wi-fi) +some photos +some calls , 2 days isn't bad