I entered US on a H4 visa and just last year end, I applied for COS from H4 to F1 using Form I539 so that I can do student assistantships under my professor. The approval of my F1 came on last week of Jan,2015.
Now I have a COS to F1 but a valid H4 visa stamping on my passport valid until 2017. I may have to go for a trip to India in May 2015 and want to know if I can come back on the already existing H4 visa on my passport? My professor scraped off the assistantship position and so the F1 visa is no longer of any use to me. Also I want to convert back to H4 because its allows me to be a part time student at university and maybe I can look for internships under the new/ upcoming H4 work authorization rule later this year.
I want to know if I can come bck on the existing H4 visa on passport valid until 2017 or if I should file for a new H4 visa in India to convert back? If I do that, does that mean my F1 is officially not valid anymore? Or should I do the I539 process again to change from F1 to H4. I am just worried about the timeline for that and if they would approve since I just got the F1 approval in Jan 2015.
Would be grateful for your help in this regard