solid-state drive replacement in mac air 13" early 2015
I am currently having trouble with booting my machine due to the fact I have lost my firmware password. When I try to boot the icon padlock appears. I am currently in El Capitan OS and first noticed the problem when I upgraded from Yosemite to El Capitan.
Can I replace the solid-state drive safely? I would appreciate any help you can supply. Model Identifier-Macbook Air 7,2 Processor Name-Intel Core i5
Processor Speed- 1.6 GHz Number of Processors-1
Total Number of Cores-2 L2 Cache (per Core)- 256 KB
L3 Cache- 3 MB Memory- 4GB
Boot ROM Version: MBA71.0166.B12 SMC Version (system) 2.27f2