[Q] How new gen root device [KitKat 4.4.2 + eSTAR]

HELLO TODAY I HAVE QUESTION 4 U GUYS , HOW ROOT ESTAR X45 IT POSIBILE ROOT ON KINGROOT BUT I WANT ON OTHER WAY NOT HARMFULL (STEALING INFORMATION - KINGROOT).. ANYWAY WHAT TO DO?
My ESTAR X45 SPEC.:
>Manufacturer Article eSTAR X45
>CPU MT6572 Dual Core
>GPU Mali 400
>Display Resolution WVGA TFT (480×854)
>Operating System Android 4.4 KitKat
>VGA No
>USB 1 x Micro USB
>3G Yes
>Wi-Fi + Hotspot Yes

[For help = +REP :)]