Based on CM12.1 (Android 5.1.1) Very smooth,

Tested on Landvo L200 but should work also on Laude S800 and Landvo L200G (you can try if 4G works) .

Installation :

- Copy all files to SD card

- Boot to your recovery, if you don't have one, download Carliv for L200G/L200.

- Make backup

- Flash ROM, reboot

- Reboot recovery

- Flash GAPPS

- Enjoy!

If your IMEI are missing/SIM card not workign (type *#06#) (didn't happend to me on my L200)

- Install chamelephon (from play store or here : http://apk-dl.com/chamelephon)

- Apply your IMEI (writed behind your battery on in the box of phone) (Random IMEI are OK also)

- Reboot

How to get more storage for apps and install Carliv recovery :

Download the files what includes flashtools + ebr files.

Choose the right EBR for you (default 3gb for apps) and flash using flash tools, it's a way to install Carliv also.

If you run stock rom not rooted, i recommend you to do this so you don't have so much problem installing recovery.

You can read the readme included in L200-Files directory.

BUGS :

- Wifi Hostspot doesn't work. (USB & bluetooth is ok)

- if USB don't work (usb charge only), press build number many times, go to developpers options and disable ADB.

- Ringtone is way too loud, this is L200 problem, i don't know how to fix because we don't have MTK Engeener mode anymore. Media volume also increase too much…

- You tell me !

Credits :

Cyanogenmod Team

OctOS team : https://www.teamoctos.com/