How to upgrade RAM in your Lenovo IdeaPad Flex 14 | Windows Central
Lenovo Flex 2 14 Home and Entertainment Laptop (Intel i7-4510U 2-Core, 8GB RAM, 256GB SATA SSD, 14" Touch Full HD (1920x1080), Intel HD 4400, Wifi, Bluetooth, Webcam, 1xUSB 3.0, 1xHDMI, Win 8.1) -
How to upgrade RAM in your Lenovo IdeaPad Flex 14 | Windows Central
Inside Lenovo Ideapad 5 (14) – disassembly and upgrade options
Lenovo Flex14 M.2 SSD, RAM and fan upgrade - YouTube