Vivo needs to enable the plug n play option for transfer of files form phone to computer, I spent on full day and still was unable to figure out how to transfer files from phone to laptop using an USB calbe, vivo assist does not detect I have tried 1. vivo Assistant ( Doesnt work) 2. Developer Mode ( Dosent work) 3. Updated Firm ware and tried ( Dosent work) 4. changed Multiple USB Cables ( Dosent work) 5. Restarted Laptop after installing of Vivo Assistant software and USB drivers ( Dosent work) I am really cheesed offff. with Vivo : (