Switch from EB-3 to EB-2

[phongnguyen17]

I have granted labor certificate and approval of immigration visa. However, I have made a big mistake for applying in EB-3 category while I am eligible for EB-2 (Master degree and 7 years of experience) 'cause I do not know there are many years waiting before I could apply for AOS. NVC is processing only to August, 2002 while my priority date is March, 2006. I do not know if there is any legal way to switch my case from EB-3 to EB-2.

Any advise is appriciate.

PN