Help Root ZTE A512

[Guest DMR2]

I need help, I wanted to do my ZTE to 512 and I can not do it at all. Of all the programs that support the device I get the following:

--- = SRS One-Click-Root v5.1 =

16:30:09 - Starting ADB Server ..
16:30:16 - Manufacturer: ZTE
16:30:16 - Model: ZTE BLADE A512
16:30:17 - Android Version: 6.0.1
16:30:17 - Build ID: VDF-A512B01-PT_MR03b
16:30:17 - Board ID: MSM8917
16:30:17 - Chipset Platform: msm8937
16:30:17 - Getting OffSets ..: error: only position independent executables (PIE) are supported. (False)
16:30:18 - Query Server for Best Method .. Found Rootkit: 8

---- = Start Rooting Process .. Please Wait = ----

16:30:19 [+] Testing exploit: root8 (please wait ..)
16:30:21 [+] Remounting / system Filesystem as R / W ..
16:30:21 [+] Installing SU Binary ...
16:30:22 [+] Installing SuperUser APK ...
16:30:23 [+] Remounting / system Filesystem as R / O ..

16:30:28 [+] Rooting Complete!

It gives indication that it gets root but it does not stay.

Another program that supposedly works is this one spoken in this video:

Https://www.youtube.com/watch?v=w_U_pjwE_3Q

Program: http://kidapso.com/autorootdl I can not test because I can not download even responding to the proposed surveys.

If you know of any solutions, share. Thank you

Build ID: VDF-A512B01-PT_MR03b