My Galaxy Y came with 2.3.6. I observed the SD Card removed unexpectedly problem for some days then, later I updated regularly using software update in About phone. I got rid of the bug and till ddla1 update there was no problem, and now I have updated to ddla2, the same bug has cropped up again. There is no further update to install and I am facing the SD Card removed problem frequently. I request Samsung and Android to resolve this issue immediately by releasing an update. Thank you..