Desperate need of help connecting to USB Host shield

[customcontroller]

The board may be dead so buy a new one. Wrong voltage indicates hardware failure.

Or search this forum for other usb host shield problems. For example there is one that mentions 3.9 volts.

USB Host Shield not working - wrong SMD chip populated?

Hello, i try to get a (big) USB HOST shield working with a Uno. I bought the shield from a well known seller here in germany but it does not want to work. USB HOST lib V2.0, the 3 solder jumpers are configuered, tried the examples with Mouse, Keyboard, XBOX360 cable controller. After some troubleshooting i realized, the 3.3V rail on the shield is at nearly 4V. The cause seems to be the connection of ARD MOSI leading to pin 9 of the 74AHC125 levelshifter (5V to 3.3V) - at least leaving this conn…