The USB device frequently loses connection.
The USB device frequently loses connection.
Your computer is experiencing USB issues, especially with the 3rd generation Nexxtech drive and iPhone 5. It seems to work with the older 128 MB USB 2 but not with the newer ones. You've already checked drivers, BIOS, power settings, and safe mode—still facing problems. Try plugging the USB in before turning on the PC for a short time. If it works temporarily, it might indicate a power or compatibility issue. Consider testing with a different USB port or checking if the drive is properly seated.