USB connection problem with IOS 12.4 Beta3

[smarc]

with my iPhone 6S+, IOS 12.4 Beta 3:
The connection with USB cable is not more possible.
I tried to remove the Access Code, mprotection, etc in:
SETTINGS/TOUCH ID & PASSCODE / USB Accessory toggle.

I cannot sync, nor backup, nor upgrade the device.
Already trued to reset Network Settings and Locations and Privacy.

Do I have to wait an OTA upgrade to IOS 12.4 beta4 or Erase All Content and Settings?

Thanks a lot for any help.

[Lily Lee]

Hi,
1. Please connect with an original USB cable and try again.
2. Use the rear USB port on your PC will make the flash process more stable.