BNO055 doesn't get recognised

Hello everyone!

I can't get the BNO055 to work for me. When I run the I2C-Scanner sketch to find out its address, the arduino can't find it. I connected SDA with the A5-Pin and SCL with with the A4-Pin.

I don't have the Adafruit breakout board but instead this one from aliexpress
goo.gl/Io4iEY

Can someone help me please? i am stuck^^

Did you connect power and ground?

yes of course i connected them.
i was thinking that i maybe have to do something with those solder pads. sadly i didnt found someone using this sensor breakout board

You do have to solder the connections.

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