Here in this page You will get to know about these things:--
..........."All download links are at the bottom of this page "............
1} How to download and Install Epic rom based on MIUI 8.3 latest version for coolpad note 3 lite..
2} Short review of this epic rom v3 i.e., MIUI 8.3..
So, before starting you should know about flashing roms and your phone should be rooted and installed TWRP recovery...
Now let's start,
Steps:--
1} Flash Stock Rom (Marshmallow v10before flashing Epic Rom otherwise some features would not work like fingerprint will not work... etc...) from here
2} Download the Epic Rom for coolpad note 3 lite from the link given below or from here..(Direct Links)
3} Copy this Epic Rom file into your SD card..
4} Your phone should be charged minimum of 40%..
5} Now Power off your device and press Volume up + Power Button till you feel vibration (after vibration keep pressing volume up button)..
6} Now you will see TWRP logo , Now go to Wipe and Select Wipe cache, Dalvik cache, and Data (Wiping Internal storage is not mandatory)..
7} Now go to install and Select the directory in which you have copied the Epic Rom downloaded file
8} Now select that file and swipe right to confirm the flash (it will take upto 3-5 minutes to install)..
9} No other patches are required becoz everything is working fine in this version of epic rom
10} Now click reboot to system,,
That's all the Epic rom has been installed to your coolpad note 3 lite ...have fun with features of MIUI 8 ... :-)
Sorry to say but first boot will take upto 10-15 minutes..
Download links-----
Gapps are included in both of the ROM's , Don't worry about gapps... :-)