Lenovo ThinkPad E550 AITE1 NM-A221 BIOS (REV 1.0)
File details
| Type | BIOS |
|---|---|
| Brand | Lenovo |
| Model | ThinkPad E550 |
| Board number | NM-A221 |
| Platform | AITE1 |
| Board maker (ODM) | Compal |
| Revision | 1.0 |
| Device | Laptop |
| Format | RAR |
| Size | 3.7 MB |
| Added | July 18, 2021 |
| Updated | |
| Original file name | Lenovo ThinkPad E550 E550C AITE1 NM-A221 Rev 1.0 BIOS.rar |
Where to get the file
Opens the matching file on RM Schematics, or its source details if it is not catalogued there yet.
Alternative links
No other copies are known yet.
Description
BIOS dump for the Lenovo ThinkPad E550 laptop, board number NM-A221, revision 1.0, platform AITE1 with Compal as the ODM. The archive is about 3.7 MB in RAR format. Technicians use a BIOS dump like this to reprogram the SPI flash chip with a programmer after a corrupted BIOS or a failed update. Before flashing, confirm that the board number and revision printed on your motherboard match NM-A221 rev 1.0, and read and save the original chip contents as a backup so you can recover if the write goes wrong.
For board NM-A221 the catalog also has 4 schematics and 10 BIOS dumps.
Description generated from the catalog data. ·
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Questions about this file
How do I flash this BIOS dump?
Write it to the SPI flash chip with a programmer such as the CH341A and a SOIC8 clip. Read and keep the original contents first, and check that the chip size matches the dump.
Will this BIOS work on my board?
Only if the board number and revision match: Lenovo ThinkPad E550 AITE1 NM-A221. Dumps from a different board or revision can leave the board dead.
What does “clean ME” mean?
The Intel ME region in the dump has been reset, so it can be used on another board of the same model. Keep your original dump and transfer serial numbers if needed.