I need 3.3V on my Arduino connector, I need to use the Arduino shield. I am measuring 3V on VDD line. According user guide, if I cut SB38 , VDD will be disconnected, I assume this means that I will see 3.3V if I cut SB38. I think I did cut it with a pin and in my magnifier, I dont see the dot between 2 half circles. However, voltage is still 3V !! (how am I supposed to cut the solder bridge anyway ?) Is my understanding correct ? should I see 3.3 V on VDD pin on the shield ? if yes, what am I doing wrong ? if no, how can I see 3.3V on arduino connector , this is needed for my sensor device. your help appreciated.