BLU Life One X2 was not detected as MTP device on Windows 8.1

After connection the Phone BLU Life One X2 on my laptop, Windows 8.1 PRO didn't recognize the device. The DeviceManager showed an error in the INF-Section. After searching for a resolution,
I was installing some other drivers and many other things, but without success.

Today I found a short hint here.

(1) Go to C:\Windows\INF
(2) Type "wpdmtp.inf" in search bar provided to the right of the address bar in Windows 10.
(3) Once you found it, just right click on it and select install. It will take a very few seconds.
(4) Connect your device to the pc.

After following this simple steps, the Phone was recognized by the system and the internal and SD Card storage is accessible.