Hi,
I tested the 4 USB ports, first with the original Sony USB cable, then with a Belkin one . The result was the same, regardeless the USB port or the cable:
- adb does not recognize the device
- fastboot recognizes the device
- the message after the command “fastboot boot twrp-3.3.1-1-pioneer.img” was
“Sending ‘boot.img’ (60592 KB) OKAY [ 1.406s]
Booting FAILED (remote: ‘Failed to load/authenticate boot image: Load Error’)
fastboot: error: Command failed”
Therefore, either the USB ports and the cables are not the issue, or all of them have issues.