Acer Laptop Nitro 5 AN515-51 SSD M.2 Upgrade, disassembly and assembly back

Disassembly laptop Acer Nitro 5 AN515-51 and upgrade SSD Samsung 860 EVO M.2 250Gb. It's easy to do. Click subtitle for more instruction. This model did not include the m.2 screw, you need to find one M2x3 or M2x4 size screw that fits with its m.2 screw hole. You might find it on old broken 3.5" PC HDD. Tools you need : 1. Phillips head screwdriver size 2 2. Plastic plying tool, plastic pick or old credit/ATM card 3. 1 M2x3 or M2x4 screw