Tag Dell 3421

Dell 3421 schematic diagrams, boardview, repair resources free download. Repair guides & tips, repair tutorials, repair manuals for Dell 3421, learn how to repair your Dell 3421.

Laptop Repair Guide

Dell 3421 laptop cannot be powered on for repair

DELL 3421 notebook computer Won't Turn On, after testing, found that PURE_HW_SHUTDOWN#unstable caused ECRST to reset constantly, and the fault was repaired after replacing D3601.

lqy01
2022-03-25

Laptop Repair Guide

Dell 3421 notebook screen dark screen repair

Dell 3421 notebook screen is dark and the backlight is not bright, which is caused by small components.

yx
2022-03-14