| Category | File Name | Download |
|---|
| Original Backup | ThinkPad/ThinkPad - BIOS Lenovo L420 (DAGC9EMB8E0)/Lenovo - DUMP_good_W25Q32.bin | |
| Original Backup | ThinkPad/ThinkPad - BIOS Lenovo L420 (DAGC9EMB8E0)/DUMP_good_W25X40_EC.rom | |
| Original Backup | ThinkPad/Lenovo ThinkPad L420 New MCS.bin | |
| Original Backup | ThinkPad/Lenovo - ThinkPad L420 DAGC9EMB8E0.bin | |
| Classic Schematic | ThinkPad/Quanta GC9A 2010-12-24 - Lenovo ThinkPad L420 DAGC9EMB8E0 REV-E 【 Watermark 】.pdf | |
| Classic Schematic | ThinkPad/Quanta - DM4／RB4 2010-12-24 Lenovo ThinkPad L420 DAGC9EMB8E0 REV E Schematic Diagram.pdf | |
| Classic Schematic | ThinkPad/Lenovo ThinkPad L420 DAGC9EMB8E0 REV-E.brd | |