missed fingerprint appointment for 10 days! Helpppppp !!!

[ZEELAW]

I left US after I filed the I131. My friend did not let me know he has received the USDIS letter until yesterday. I am currently in HK and my appointment was in Chicago.
Can I go to Guam and just walk in ? Is there any one has experience in Guam? Can you provide some info and the address of the ASC of Guam?
Thanks in advance and waiting on line.....

[ZEELAW]

anyone can help any question listed above? Really appreciate it!

Look forward to any help on my questions. Thanks a lot