Prompt [Q] How to perform Nandroid Backup on Lenovo K900

Hi Android Lovers,

I have enjoyed using VIBE ROOTED CUSTOM ROM on Lenovo K900 since the day I bought. Im currently using VibeRom V1.0_1418 with JB 4.3.

Since we're already know there are no TWRP/CWM recovery is yet available for Lenovo K900, I was wondering how can we perform any Nandroid Backup with only using Original Recovery? I know one APK called BackDrop Root can perform a Nandroid backup with sync connect backup to DropBox, is this the only possible backup?

Appreciate your great help in sharing to solve the issue.