Lenovo Flex 14 and Flex 15 - HDD and Memory upgrade - YouTube
Lenovo Flex 2-14 (80FJCTO) - Remove Hard Disk (Disassembly) - YouTube
Lenovo Flex 2 14 Home and Entertainment Laptop (Intel i7-4510U 2-Core, 16GB RAM, 120GB SATA SSD, 14" Touch Full HD (1920x1080), Intel HD 4400, Wifi, Bluetooth, Webcam, 1xUSB 3.0, 1xHDMI, Win 10 Pro) - Walmart.com
Lenovo Flex 2-14 Hard Drive Replacement - iFixit Repair Guide
Lenovo Flex 5 1570 (81CA000YUS) 2-in-1 Laptop Intel Core i7-8550U 1.80 GHz 15.6" Windows 10 Home 64-Bit - Newegg.com
Amazon.com: Lenovo Flex 2 16-Inch Touchscreen Laptop 15 Signature Edition 2 in 1 PC 6GB 500GB Hard Drive 8GB SSD : Electronics
Lenovo Flex 2 15 HDD Caddy
256GB NGFF M2 2242 SATA SSD Solid State Module for LENOVO Flex,Flex 2,Flex 14,15 | eBay
Lenovo Flex 14" FHD PC Laptop, Intel Pentium Gold 5405U, 4GB RAM, 128GB SSD, Windows 10, Black, 81SQ000SUS - Walmart.com
Lenovo Flex 2-14 Hard Drive Replacement - iFixit Repair Guide