You can download un official Lenovo K3 Note Android Lollipop ROM now. This ROM is based on cyanogenmod 12 which bring android 5.1.1 lollipop to this android phone. To flash this ROM, you must have Lenovo K3 Note CWM or TWRP as these are custom recoveries allowing you to install third party software and ROMs on it.
What is included in this ROM:
* Status Bar
* Clock & Date Options
* Battery Options
* Battery Bar Options
* SuperUser Indicator
* Bluetooth Indicator
* Brightness Control
* Mobile & Wifi Icon Options
* Notification & System Icon Options
* Network Traffic Monitor
* Breathing Notifications
* Bliss Logo Option
* Notification Count
* Wifi SSID in status bar (see Wi* Fi advanced options!)
Navigation & Button Options
* Set Navigation Ring Targets
* Backlight Brightness & Timeout
* Overflow Button Settings
* Navigation Bar Toggle
* Set Navigation Buttons, Layout & Dimension
* Double Tap to Sleep
* Power Button End Call Option
* App bar incl. open app in floating window via long* tap
Recents Options
* Memory Bar
* Clear All Button Tweaks
* Clear All tasks
* Clear All Recents Location
* Option to show Google search bar in recents Menu
* OmniSwitch (Option to replace recents menu with Omniswitch)
* Open app in floating window
Notification Drawer
* Status Bar Header (Weather)
* Tile Options
* Flashlight Option
* Custom Color Tile Options (Set Background, Icons & Text)
* Quick Setting Options
* Quick & Smart Pulldown
* Brightness Slider Toggle
* Vibrate, Detailed Wifi View & Advanced Location Options
* SlimActions Tile
* Auto Close Panel
* Force Expanded Notifications
* Open app in floating window via long* tap and then floating icon
Heads Up Notifications
Lockscreen Options
* Long Press Lock Icon to Sleep
* Shortcuts
* Bottom Corner Targets
* Weather Options
* Customize Text & Icon Colors (incl. carrier label)
* Clock Widget Settings
* Music Visualizer Options
* Power Button Lock Options
* Lock Method Options
Power Menu Options
* Power Off
* Reboot
* One Click Reboot
* Screenshot (with delay option)
* Screen Record
* Profile Switcher
* Airplane Mode
* User Switcher
* Settings Shortcut
* Device Lockdown
* Sound Panel
* Flashlight
Gesture Anywhere
* Location Options
* Trigger Regions
Animations
* IME Animations
* Toast Animations
* Listview Animations
* System Animations
* Scrolling Cache
* Scrolling Modifiers
App Circle Bar
* Included Apps
* Trigger width, position and height
Sound Options
* Link Ringtone & Notification Toggle
* Media, Alarm, Ring & Notification Sound Options
* Volume Steps
* Volume Panel Timeout
* Interruptions
* Launch Music Apps
* Dial Pad Tones
* Screen Locking Sound
* Touch Sounds
* Charging Sounds
* Camera Shutter & Screenshot Sounds
* Safe Headset Volume
* Less Frequent Notifications
* Media Control
* Vibration Options
Display & Light Options
* Smart Cover
* Adaptive Brightness
* LiveDisplay
* Rotation
* Double Tap to Sleep
* Sleep Time
* Wake on Plug
* Cast Screen
* Expanded Desktop
* Daydream
* Font Size
* DPI
* Battery Light
Notification Manager
* Device Lock Options
* Block App Notifications
* Disable Persistent Info
* Priority App Notifications
More Stuff Included
AudioFX Equalizer
* SuperSU – Huge thanks to @Chainfire
* BlissPop Wallpapers (via launcher’s Wallpapers)
* Home Launcher Option
* CM Camera
* User Profiles
* System Profiles
* Location Options
* Security Options
* Privacy Options
* Accounts & Sync
* Language & Input
* Backup & Reset
* Date & Time
* Accessibility
* Printing
* Developer Options
* Rom & Hardware Information