I can't find where the memory located at.
Anyway, Here what I have to do to update my phone if I'm right.
1) download the latest DM Which is version 4.7 right?
2) download the OS version 188.8.131.52
3) unzip the DM and OS
4) install the DM in my PC
5) install OS in my PC
6) delete the file vendor.xml
7) open the MD
8) plug in the phone in the usb
9) Am I missing something so far?
10). then whats next?