Lenovo T460S BT460 NM-A421 BIOS (REV 4.0)
File details
| Type | BIOS |
|---|---|
| Brand | Lenovo |
| Model | T460S |
| Board number | NM-A421 |
| Platform | BT460 |
| Board maker (ODM) | Compal |
| Revision | 4.0 |
| Device | Laptop |
| Format | RAR |
| Size | 15 MB |
| Marks | unlocked, tested by uploader |
| Added | March 12, 2024 |
| Updated | |
| Original file name | LENOVO_T460S_BT460_NM_A421_REV_4_0_2016_04_HF_TYPE_20HG_UNLOCK_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
LENOVO T460S BT460 NM-A421 REV 4.0 2016-04 HF TYPE 20HG UNLOCK BIOS 100%
Unlock T460S patched-OK TESTED AND WORKING 100%
Remove all battery and CMOS battery
press F1 to enter setup: password 1234
wait 20sec or more
Enter any ID to hardware Id
Press 2x space bar when asked
Turn off the computer
and restore your original bios
Enjoy
If 2x 5beep, it's normal
Wait minimum 30sec before screen logo light on. Must turn on/off several times by itself
bios archive team BIOS dump for the Lenovo T460S laptop, board number NM-A421, platform BT460, ODM Compal, revision 4.0, supplied as an unlocked RAR archive of about 15.4 MB. The uploader marked it as tested, but that is not something this catalog has checked. Technicians use a BIOS dump like this to reprogram the SPI flash chip with a programmer after corruption or a failed update. Confirm that the board number and revision match your machine before flashing, and save the original chip contents first.
For board NM-A421 the catalog also has 3 schematics and 7 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 T460S BT460 NM-A421. 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.