When an I-485 is accepted at the Service Center, requests for FD-258 FBI fingerprint checks, fingerprint fees, and G-325A consular background checks are made by USCIS. Responses to these requests come back to USCIS and must be matched up with the appropriate files held in staging. File Maintenance "file connects" these responses to the corresponding files.
My wife and I had our passports stamped after a 6 hour ordeal that started at 8:30 a.m. and ended at 2:30 p.m. Here are some tips based on what we experienced,
1. For an 8:40 appointment, get there before 8 if at all possible. They were not checking appointment timings, so people with 9/10 a.m. appointments were ahead of us in the line. All they care is that you have an appointment for that day.
Trying to get an F-1 while an AOS/I-485 is pending has been a recurring theme in our community. Last year in May/June we had spent two hours talking about this theme in our community conference calls. A lot of people wanted to do their MBA and were not able to wait for their green cards to join school.
Generally speaking when you have exhibited immigrant intent, getting an F-1 becomes difficult. On top of that, USCIS has said that F-1 is not compatible with a simultaneous I-485. But USCIS has never told us what happens if do file for an F-1 while an I-485 is pending.
Here is a contribution from a member of our community:
Here is a question from a community member: