원문 게시자: Walter Galan ,
Hi Marina. I found this info in the [link|http://usermanualworld.com/wp-content/uploads/Samsung%20Galaxy%20R%20GT-I9103%20user%20manual%20guide.pdf|Samsung Galaxy R User Manual|new_window=true]: To remove the SIM 1) If the device is on, press and hold the Power key and select Power off → OK to turn it off. 2) Remove the back cover. 3 Remove the SIM or USIM card with the gold-coloured contacts facing down. Hope it helps.