LENOVO E550
AITE1 NM-A221
REV: 1.0
NM-A221_AITE1_Rev1.0_UMA_
AITE1 NM-A221
REV: 1.0
NM-A221_AITE1_Rev1.0_UMA_
About this board
This thread is for the Lenovo E550 with main board NM-A221.
Lenovo had this board built by LCFC; LCFC (Lenovo/Compal) board numbers start with NM-. Check the number printed on the PCB before you download.
What this thread covers
- BIOS (full SPI chip dump, .bin)
- Schematic (PDF)
- Boardview (.brd / .bdv / .cad)
Typical reasons to reflash: no power or no display after a failed BIOS update, a BIOS/supervisor password lock, or a corrupted Intel ME region.
Before flashing, always read and save the original chip. It holds the serial number, UUID, MAC address and ME data for that exact machine.
If you have a working file for this board, please share it below. More files: search NM-A221 in File Finder.
Attachments
E550C nm-a221 ok tested.rar
3.6 MB · Views: 24
3.6 MB · Views: 24
LENOVO E550 EC IT8586E.rar
45.8 KB · Views: 22
45.8 KB · Views: 22
Thinkpad E550-NM-A221.pdf
2.7 MB · Views: 38
2.7 MB · Views: 38
