Ulefone S8 Pro unlock bootloader english guide

Unlock bootloader on Ulefone S8 Pro


CAUTION: This process will delete everything from your mobile phone.

Back up.

On the mobile we've unlocked Developer Options, we select USB debugging and OEM unlocking


We download the windows driver from Ulefone's site:

http://ulefone.com/download/s8pro.html

At the bottom of the page, click on Driver: Download

It concerns Windows 7. For Windows 8 and 10 we follow the corresponding procedures are on the above website. We decompress and run the Install.bat file as an administrator

 

We accept that our message is displayed and when the process is over, we go Device Manager and choose under Android Phone our device to us appears with a warning that the driver was not installed correctly. Right-click-> Update Driver Software...

 

In the next window, select Browse my computer for driver software (Manual Detection ...) and search the downloaded driver folder by selecting x64 for 64bit respectively windows and x86 for 32bit and we select the Unsigned infs subfolder

and then android_winusb.inf.
The installation will be completed if you require a reboot to do so.

We install here:
http://www.oracle.com/technetwork/es/java/javase/downloads/jre8-downloads-2133155.html?printOnly=1
the Java SE Runtime Environment 8u151 for X86 or x64

And we install it according to our instructions.

We download Android SDK 24.4.1 from here:
https://filehippo.com/download_android_sdk/

And we choose to install Android SDK Tools and Platform-tools
It just does not need anything else.
You just finish installing if you want to select Updates / New and upgrade to version 25.2.5 and 26.0.2 respectively (located at the bottom of the SDK Manager window).
I repeat, --- we do not need anything else. ---

We go to the folder
C:\Program Files\Android\android-sdk\platform-tools

(tap Start-> Run and paste the location above)
And in the folder that opens you, hold down the Shift key and make a blank right click -> Open Command Window here

In the command window that opens, type 

adb devices

 If you show us on your mobile to allow USB Debugging, press "Allow" He has to show us the following

Where the image is erased, it will display the serial number of your device.

And then the commands 

adb reboot bootloader

fastboot devices 

fastboot oem unlock 

Here we look at our mobile screen where it will prompt us to push Volume Up to continue the process (we do) and when it is finished and let us know that the bootloader is unlocked we give the command 

fastboot reboot 

We wait for about 5-10 minutes to show the welcome screen where we will re-set the smartphone like when we bought it.

(Translation by Constantina S. )