[Android Q&A, Help & Troubleshooting] romulocarlos:
Hello people. After a long time searching and trying, I finally get this model rooted. The problem was, basicly, the bootloader. After unlock it, I was able to root the device. I'll tell you the steps, but be warned:

UNLOCK BOOT LOADER IS RICKY, AND YOU MAY KILL THIS DEVICE. FOR NOW WE DON'T HAVE ANY ROM FOR DOWNLOAD, SO WE CAN'T UNBRICK IT WITH SP FLASH TOOLS.

YOU MAY LOOSE ALL YOUR DATA AFTER BOOTLOADER UNLOCKED!! TAKE A BACKUP!!

ME AND/OR XDA CANNOT BE RESPONSABLE FOR ANY BRICK TO YOUR DEVICE.

YOUR ARRANTY WILL BE VOID.

THIS METHOD IS SOMEHOW FAIL. MAYBE YOU MAY HAVE TO DO IT AFTER A RESTART.

YOU WAS WARNED!!​

This sayed, you will need the USB drivers, adb, fastboot. I made the hardwork for you, and the files I used are attached bellow. Unpack it to a folder, let's use C:\C6 to be easyer. You need also Kingo Root For PC (not King Root), you can download from https://www.kingoapp.com/. Install it, but don't run. Make sure you have enought battery, as the process can take a long time (for me, all procedures taked 30 eternal and nervous minutes). The process I made was on Windows 10 64bits, so, some steps maybe differ if you use a different system.

Once prepared, let's go again.

Phase 1: Preparing the field:

Set screen timeout to 30min, and remove any PIN, password or secure lock screen settings.

If USB Debug is disable, you must go to Settings > About Phone > Tap Build Number until "You are a developer" appears.

Now, go Settings > Developer Options > Check USB Debugging. Accept the warning.

Now, go Settings > Security > Check OEM Unlocking. Accept the warning.

Now, connect the phone with PC

It will install the drivers. If it don't install, go to Device Manager, look for "Android MT65XX" or something similar, and update the drivers with the ones I give to you. FOR NOW ON, DON'T REMOVE THE CABLE FROM PHONE OR PC.

If all are correct, the phone will ask for a confirmation after installing the drivers. Check "Always allow", and tap OK. To re-confirm everything is ok, open a command prompt as administrator, and type the following commands (remember to hit ENTER on PC keyboard for each command for now on):

cd\c6
cd "adb fastboot"
adb devices

You MUST see something like:

List of devices attached
* daemon not running. starting it now on port 5037 *
* daemon started successfully *
XXXXXXXXXXXXXXXXXXXX device

Where 'X' is the device serial number. If you don't see this, the drivers don't work for your device. You must search and find another somewhere. If everything is correct, keep fingers of one hand crossed and let's continue.

Phase 2: Unlock the bootloader:

In the same command prompt, type the following:

adb reboot bootloader

The phone will reboot, more drivers are installed, and you are presented with a black screen with "FASTBOOT mode" at bottom. To test if the drivers are ok, type:

fastboot devices

You MUST see something like this:

XXXXXXXXXXXXXXXX fastboot

Again, if you don't see, you must browse internet and find the drivers. If everithing is OK, type:

fastboot oem unlock

Go to the phone, you will see a warning. Accept it by hiting VOL+ key. The phone will change the screen, and your command prompt will confirm the unlock. CHECK TO SEE THE CONFIRMATION. Now, type:

fastboot reboot

The phone will reboot again, will appear "Erase data" (you lost your data here), and reboot again, new as hard reset. Let's confirm it is unlocked. Repeat the steps 1 to 3 from phase 1, and type:

adb reboot bootloader

Wait for the phone's black screen and type:

fastboot getvar all

In the results, search for "(bootloader) unlocked: yes". If you not find, or appears "no", stop reading now, and don't try anything else: this tutorial will not help you.

If you find, congratulations! You can now uncross your fingers and go to final phase! First, we need to reboot again. Type:

fastboot reboot

And wait the phone bootup.

Phase 3: Root!

Open Kingo Root as administrator

UNCKED install suggested apps

Click "ROOT"

Some seconds after, the phone will present a "Kingo Link" error. Just tap ok, and you can now go drink coffee or watter if your prefer. It will take a time, don't touch the phone.

If everything was OK, Kingo Root will present "Root Success" both on phone and PC. On the PC, you have a donate button. Why not?

Well, thats it. You can now disconnect your phone, close command prompt and use your root powers, but be warned: DON'T MESS WITH SYSTEM TOO MUCH, AS WE DON'T HAVE A ROM DOWNLOAD FOR NOW. UNINSTALL OR INTEGRATE MAY BE RISCKY, AS WELL DELETING FILES.

OBS.: Don't get fired, configure on the alarm NOW!

Don't forget to hit thanks if I help you.

MODS: Move this topic to the right section, please!