It’s been hardly no time, and already developers here on XDA are finding ways to make the already powerful HTC EVO 4G LTE even faster and achieve better battery life. While the bulk of development is still ahead, some luck in creating custom recoveries can flash kernels despite not having true S-Off has helped things along. Overall, the horizon looks really good for Sprint’s newest flagship phone. And this is all despite Apple’s attempt to prevent it from coming to the States.
XDA Recognized Developer -viperboy- has released a mod that will keep the 2nd CPU in the dual core phone on all the time, which originally gained popularity on the HTC EVO 3D. The mod is easy to install. Users need to be rooted with a custom recovery, as it comes in the form of a recovery-flashable update.zip. The modification itself is an edit to an init.d script that basically turns the 2nd core of the CPU on at boot by modifying /sys/devices/system/cpu/cpu1/online, and keeps it on by making the value read-only until the next boot. To verify that the flash worked and everything is working, -viperboy- recommends:
You can also verify this is working by any number of apps, but I find SystemPanel to be the best. They have a free lite version. Just download and tap on the top right where the CPU info is. You will the the CPUs changing, when it goes grey it’s offline (which you won’t see when using the Dual Core Mod)
Those interested should head on over to the original thread for all the info._________