Install CUSTOM ROM on Lenovo s920 Kitkat 4.4.2 8GB ROW S220 using CWM Recovery

Note: Proceed at your own risk. I'm not responsible if it does not work or anything happens to your phone. 

Install CWM Recovery using the Mobile Uncle tools. Follow the process @ http://apriliasaputra.blogspot.in/2014/09/install-clockworkmod-recovery-pada.html

After installation, power off the phone. Boot into custom recovery pressing the POWER Button + Both VOLUME Keys at the same time.

1. Download any ROW ROM for s920 from http://www.needrom.com/phone-roms/lenovo/serial-s/s920/. 
1. Eg downloaded Nexus 5 v1.0 4.4.3 for s920 ROW
2. Copy the same to external sd card
3. Reboot into CWM recovery
4. Take a backup of your existing ROM
5. Wipe Data / Factory reset
6. Wipe Cache
7. Advanced -> Wipe Dalvik cache
8. Format data
9. Format cache
10. Format system
11. install zip from sdcard -> select the ROM downloaded
12. Wait for it to install, it will reboot automatically
13. Your S920 now has a CUSTOM ROM

Issues Faced

1. Root is not available, opening super user will give an error to update su binary
1. To Root, flash the file 4.4Root @ http://www.needrom.com/download/root-for-lenovo-s920/
2. This would install KingUser. Do not open the KingUser app (as i lost root and had to flash the zip again)
3. Apps would automatically request for the su access
2. GPS does not seem to work on the ROM Nexus 5 v1.0 
3. Do not flash the fix sensor compass zip file for Nexus 5 v1,0 as it results in boot loop
4. The external sd card becomes the internal card and the internal 5gb is no longer available

Enjoy your new Lenovo s920.