atmega

I connected mpu-6050 to Arduino pro micro 5v. I run the calibration script, and after 15min didn't have a result. So i updated I2Cdev, and added some lines to debug script. I print means for every iteration, and it looks crazzy. What is wrong? All script parameters are default. Unfortunatelly before calibration it works quite good... Maby you know default parameters? Vcc - 4,7 Ad0 - LOW SDA - 2 SCL - 3