I've been trying and searching for hours online to get the sim tray out.
none of the solutions I found worked for me.
I already messed the sim tray up
(it's a Gevey tray, so I still have my original one)
I ended up figuring out a solution that no one thought about and it worked like a dream.
all what I needed was a screw that I tight by hand so it won't go all the way to iphone hole part. than pull it.
the sim tray comes out as easy as it seems.
I hope that would help someone as desperate as I was before I got it out.
good luck.