Mobile Phones Samsung How to Remove the Galaxy S Captivate Battery and SIM Dismantle the Galaxy S's back cover to access these components By Jason Hidalgo Writer Jason Hidalgo is an award-winning technology and business journalist whose writing has also appeared in Engadget, USA Today, and the Reno Gazette-Journal. our editorial process Jason Hidalgo Updated May 04, 2019 blacktomb / Getty Images Samsung Samsung Quick Tips Tweet Share Email Removing the back cover of an expensive smartphone without instructions is daunting. You don't want to damage it, but you need to get in there. In the case of the Samsung Galaxy S Captivate, you'll need to remove the back cover to get to the MicroSD memory card or the SIM, or maybe you need to remove or replace the battery. These directions apply to the Samsung Galaxy S Captivate. If these instructions don't apply to you, maybe you have the Galaxy S Vibrant variant, a Galaxy Note, or a Galaxy S7. How to Open the Samsung Galaxy S Captivate Insert your thumbnail in the gap between the lower part of the back cover and the bottom bumper, then pull down to loosen the lower locking mechanism. The gap between the main cover and the lower locking mechanism is larger and clearly visible when the back cover is unlocked. Lift the back cover to reveal the inside of the phone. Remove the back cover to expose the inner parts, including the memory card, battery, and SIM card. To remove the MicroSD memory card, push the card in to unlock it, then pull it out. To put it back, push the card until it clicks into place. To remove the battery of your Galaxy S, lift the battery up from the bottom and pull it out. You’ll need to take out the battery to access the SIM card. To remove the SIM card, put a finger on the card and slide it out. To replace the back cover, align the top part before you put it into place. To lock the back cover, press down on the cover, then push the lower locking bumper into place. When it clicks, the Galaxy S is secure. Your phone is ready to use.