Thanks for your answer. I am still not clear about EAD renew problem.
To renew EAD, I have to attatch 485 receipt and fill the A# on the form.
Even though I knew the A# on my I485 receipt is not correct after immigration officer check my both 485 on their system, I had to write the A# on the attatached 485 receipt onto the I765.
However, this A# is not my true A#, what will happen?
1 They will ignore the A# I filled, and put the right #A on my new EAD.
2 They just simply put the A# I filled on the new EAD.
3 Any other possibilities.