回複：請高手指點：H1b申請上I485後不到180天丟了工作，用EAD能保住身份嗎？如果滿180天後被裁員呢？

You don't need anything including EAD to keep your status, as long as your I-485 is pending.

Your EAD may help you work legally without H-1 or work for non sponsor.

Your change employer within 180 days of I-485 submission may bring negative impact on your I-485 approval.