"Compatible with Windows 98/ME/2000/XP/Vista and MAC OS9/OS X."
It didn't say "Compatible with Samsum GT-S5620". So I don't think that one will work.
I don't think you'll ever get this working. Be sure to not buy it via Internet but in a physical shop that will let you try before you buy.
My phone is a Samsung GT-S5620. Recently, the headphone socket (3.5mm) stopped working properly.
The phone has a Micro USB socket. My question is - if I buy an adapter (3.5mm > Micro USB) for my headphones, will I be able to play MP3s on my phone through the Micro USB socket?
Thanks in advance!