Amazon.com: Lenovo ThinkPad T420 14" LED Notebook Intel Dual Core i7-2640M 2.80GHz 8 GB DDR3 RAM 1 TB HD DVD-RW WiFi Bluetooth Webcam Windows 7 Professional 64-bit : Electronics
HELP - Lenovo T420 doesnt have functioning bluetooth, the light never comes on and my computer doesn't show me any bluetooth options. Please help! : r/ Lenovo
Used Lenovo Thinkpad in Black T420 HD 14" Intel Core i5 2520M (2.5GHz-3.2GHz) 4GB Memory 320GB Hard Drive Webcam Bluetooth DVD-RW Windows 10 Professional Laptop - Walmart.com
Lenovo T420 Windows 10 Drivers, Thinkpad T420 Laptop Upgrades
Refurbished: Lenovo ThinkPad T420 14" LED Notebook Intel Dual Core i7-2640M 2.80GHz 8 GB DDR3 RAM 128GB SSD DVD-RW WiFi Bluetooth Webcam Windows 7 Professional 64-bit - Newegg.com
Used Lenovo Thinkpad in Black T420 HD 14" Intel Core i5 2520M (2.5GHz-3.2GHz) 4GB Memory 320GB Hard Drive Webcam Bluetooth DVD-RW Windows 10 Professional Laptop - Walmart.com