I remember is an att service but no sure

Phone was working properly maybe only need battery

because long time I don't charge it

The iPhone model A1241 refers to the Apple iPhone 3G, released in 2008, available in 8GB and 16GB storage, and supporting 3G, Wi-Fi, and Bluetooth, featuring a 2MP camera and a 3.5-inch touchscreen, notable as the first iPhone with GPS and App Store access, now a collectible vintage device. 

Key Specifications for A1241 (iPhone 3G):

• Model: iPhone 3G

• Years Introduced: 2008 (globally), 2009 (China mainland)

• Capacities: 8GB, 16GB

• Display: 3.5-inch Multi-Touch TFT (320x480 resolution)

• Camera: 2.0 Megapixel (rear)

• Connectivity: 3G, Wi-Fi, Bluetooth, GPS

• Processor: 412 MHz ARM 11 CPU

• RAM: 256 MB

OS: Launched with iPhone OS 2, supporting up to iOS 4.2.1

... Apple logo. There's a SIM tray on the top side that holds a "second form factor" (2FF) mini-SIM. The serial