don't worry. 90% is just a notice.

来源: 于 2007-11-29 23:53:13 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

if you changed your address or any other reasons that the mail could not reach you, USCIS will re-send it again and change your 485 status like that. This is my experience.

Most of time it is FP notice or address changing notice. 90% is not RFE based on my research when I was under the same situation.

Don't worry and enjoy your weekend!