Many cellular carriers will no longer support devices running on old software even if they are unlocked. The device has been tested and works great.
APPLE IPHONE 4S Model#A1387 EMC 2430 White Smartphone Working Locked $27.00 - PicClick
APPLE IPHONE 4S - 8GB -White (Unlocked) A1387 (CDMA + GSM) $86.48 - PicClick
APPLE IPHONE 4S - 16 Gb- Black (Unlocked) A1387 (CDMA + GSM) $40.00 - PicClick
APPLE IPHONE 4S - 8/16/32/64GB - ALL COLORS Unlocked/AT&T/Sprint A1387 $29.99 - PicClick
APPLE IPHONE 4s A1387 8GB Black (Carrier TELUS) TESTED (CDMA + GSM) $22.19 - PicClick
iPhone 4s Black 32GB for Sale, Shop New & Used Cell Phones
Apple iPhone 4S 32GB vs Sony Ericsson Xperia ray: What is the difference?
Unlocked iOS 16GB Cell Phones & Smartphones for sale
APPLE IPHONE 4S - 16GB - Black (Sprint) A1387 (CDMA + GSM) $29.95 - PicClick
Apple iPhone 4s - 32 GB - Black (Unlocked) for sale online
APPLE IPHONE 4S 8GB - Black MF259LL/A $19.49 - PicClick