Removable User Identity Module (R-UIM, usually pronounced as "R-yuim") is a card developed for cdmaOne/CDMA2000 ("CDMA") handsets that extends the GSM SIM card to CDMA phones and networks. In this tutorial you can check out how to insert Nano SIM and Micro SD Card in UMI Super. How to set up SIM and SD in UMI Touch? Open the back cover and remove the battery. How to use the card's slots? Learn how to insert or remove the SIM and SD Card tray in the. Results 1 - 10 of 23 · Umi. This article is about the card.