ThinkPad released in 2011. This version of the T420 is thicker then the T420s and lacks integrated USB 3.0. The T420i is worked on the same way and uses many of the same parts, so repair is more or less similar.
We have a chance to guarantee our right to repair electronic
equipment—like smartphones, computers, and even farm equipment. This is a once-in-a-generation
chance to protect local repair jobs—the corner mom-and-pop repair shops that
keep getting squeezed out by manufacturers.
Join the cause and tell your state representative to support Right to Repair. Tell them you believe repair should be fair, affordable, and accessible. Stand up for your right to repair!