How to install Rom
Make sure that your phone is powered on and plug it to your computer
Put the rom (aosp-k3note-5.1.0.zip) and gapps (gapps-64bit.zip) in your phone's internal memory
Use commandline to reboot to
recovery:
adb reboot recovery
Use option Wipe data/factory reset
Use option Wipe cache partition
Use option Advanced > Wipe dalvik cache
Use option Mounts & storage > Format system partition
Go to Install zip from sdcard and install aosp-k3note-5.1.0.zip
Repeat step 8 with gapps-64bit.zip
Return to
CWM main menu and choose Reboot system now
Rom will boot. Remember that first boot takes a long time