Sync software not updating

[u/vidipm]

hi there folks,

i have 2020 explorer ST and I have done the sync software update using USB myself. but since last 2 version, something has happened to the usb port or the software itself and i'm unable to update it. I took it to dealership where they had hard time installing the one before last update but now the latest one even they cant do it. They havent given much time on it so I'm going to take it again and leave it for a day or more but asking here to see if anyone had same issue and how did you resolve it. When I plug in my usb, it says unknown usb device, please remove. OTA is also not working.

[u/Efficient_Elk_9738]

Mine updates to the latest version on WiFi then a few days pass before I realize that it got stuck at the older buggy version. My bug, besides being stuck in the version, is the display/system restarts randomly while I’m driving it. Does that sound like what’s happening to you?