This is for rooted users only.
We all want to squeeze every last little bit of juice out of our devices that we can, and if you happen to have a rooted HTC EVO 4G running an AOSP kernel (such as the one that ships with CyanogenMod), then XDA member -viperboy- just made your life a little bit better. Thanks to him, there is now an easy to way to undervolt your kernel, by way of four flashable .zip files.
Generally speaking, AOSP kernels are volted to support several different devices, so it stands to reason that some devices could handle lower voltages.



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