For common problems with the Samsung Ace SPH-i325, refer to the Troubleshooting Page
Identification and Background
Not to be confused with its older model, the i320. Identifying the i325 is as easy as changing the battery. Following the sticker on the back, pop the battery case off and take the battery out. The model number and name can be found on a sticker under the battery. This phone, as shown, has a QWERTY keyboard along with support for EVDO and GPRS data networks. It's size is 4.65" x 2.32" x 0.46" and also includes stereo bluetooth, a memory card slot, and a 1.3 mega pixel camera with video capture.