So, seems two nights is the limit; during the latest (and third, after deleting play services data) night in safe mode I had again a SOD; next step, I'll flash ROM kernel and see if SOD will happen again. It's a f***ing long work though! :crying:
IMO, sod may be related to the cpu voltage. Because different cpus have different PVSs that may make an impact on the lowest voltages of different cpus. I find that the default voltage of 384Mhz is 900mV even though there are four levels of pvs (I am using Quanta v16). But different pvs values should have different voltages? you can see: http://forum.xda-developers.com/showthread.php?t=2215710
So I am trying to increase the glabal voltage (+25mV), I dont know if it could help but by far all works fine for two day. I will keep on testing.
sorry for my bad eng