Apple iPhone 5, GSM Unlocked, 32GB - Black (Refurbished) Professionally inspected and tested to work and look like new, and backed by the 90-day Amazon Renewed Guarantee. Box and relevant accessories (no headphones included) may be generic. GSM Unlocked Phones are ONLY compatible with GSM carriers like AT&T and T-Mobile as well as other GSM networks around the world. They WILL NOT WORK with CDMA carriers like Sprint and Verizon (Search for "Fully Unlocked iPhones" for CDMA compatible iPhones 4-inch LED-backlit IPS LCDMulti-Touchscreen w/ Protective Corning Gorilla Glass and Oleophobic Coating . 8 Megapixel Camera (3264 x 2448 pixels) w/ AutoFocus & LED Flash + Front-Facing VGA Camera (videocalling over Wi-Fi and over 3G) In case of software problems, including short battery life are related to too much information or corrupt files being downloaded by user to the dice. We recommend resetting the device to it's original factory state. here are the instructions" Reset iPhone 5: Press and hold the On/Off Sleep/Wake button and the Home button at the same time for at least ten seconds, until the Apple logo appears. Erase your device with recovery mode If you've never synced with iTunes or set up Find My iPhone in iCloud, you'll need to use recovery mode to restore your device. This will erase the device and its passcode. Connect your iOS device to your computer and open iTunes. While your device is connected, force restart it: Press and hold the Sleep/Wake and Home buttons at the same time. Don't let go when you see the Apple logo - keep holding until you see the recovery mode screen. When you see the option to Restore or Update, choose Restore. iTunes will download software for your device. If it takes more than 15 minutes, your device will exit recovery mode and you'll need to repeat steps 2 and 3. Wait for the process to finish. iOS 6 (upgradable), Dual-Core 1 GHz Cortex-A9 Processor, Chipset: Apple A5, PowerVR SGX543MP2 Graphics