I am in USA on B1 visa. But can't leave USA due to covid condition. 3 yrs ago, I left USA without using H-1B fully (1 yr I did NOT use and have I-140 approved). Now, as I can't leave USA due to covid, can I claim my un-used H-1B.
I did read the below statement in one of the topics.
"Apply for a change of status to B with form I-539. Once approved, you can change back to a work visa status again with the I-129."
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source https://www.reddit.com/r/immigration/comments/hhy718/can_i_adjust_status_from_b1_to_h1b/