you just have to go on the line with the receipt
I don`t know for the other states but in NY they allow walkins for fingerprint . I couldn`t wait till august , i`ve decided to go that way and it worked for me and for a lot of people . I took the line early i was like the 5th person near the door that day . The guy only ask me for the receipt showing that i have paid for the i-485 and i-765 plus the fee for the fingerprint . He ask me for ID then gave me a number to wait till they call me . Everything went smooth that day and when i got home i even see a date change on my application . One more thing when the room begun to be full with people the men at the door started to check for confimation number because there was a lot of people coming after like an houre . Hope it helps .
I don`t know for the other states but in NY they allow walkins for fingerprint . I couldn`t wait till august , i`ve decided to go that way and it worked for me and for a lot of people . I took the line early i was like the 5th person near the door that day . The guy only ask me for the receipt showing that i have paid for the i-485 and i-765 plus the fee for the fingerprint . He ask me for ID then gave me a number to wait till they call me . Everything went smooth that day and when i got home i even see a date change on my application . One more thing when the room begun to be full with people the men at the door started to check for confimation number because there was a lot of people coming after like an houre . Hope it helps .