Tips for batterylife
Just wanna share a 2 easy tips for better batterylife in CM12
- Enable "Adaptive Backlight" in Settings-Display.
- Use Trickstermod to pin the GPU at 200Mhz.. (wich is the minimum speed). (still having a smooth experience and games like Clash of Clans and CSR Racing still run perfectly).
I's not a perfect solution, but until we got a proper powersaving kernel, this will do.

---------- Post added at 12:09 PM ---------- Previous post was at 12:08 PM ----------
After flashing rom, i lost root capabilities.
Can I flash cf Auto root?
Still having root on my device after the update, have you checked the settings for Root under the Development settings?