ThinkPad T490, T590, P53s, P43s BIOS FT490/FT492/FT590/FT591 NM-B901

[Admin]

ThinkPad T490, T590, P53s, P43s BIOS N2IET29W
Supported Systems
FT490/ FT492/FT590/FT591 NM-B901

• ThinkPad T490 (Type 20N2, 20N3)
• ThinkPad T490 Type 20Q9, 20QH)
• ThinkPad T590 (Type 20N4, 20N5)
• ThinkPad P53s (Type 20N6, 20N7)
• ThinkPad P43s (Type 20RH, 20RJ)

 

[user0110000]

Hi there... What could be used to program serial to t490

 

[Admin]

No tool available for such modification.

 

[user0110000]

Is serial stored in eeprom or mec

 

[Admin]

On mec IC.

 

[user0110000]

I now have 6 t490s motherboards with no sound. 1is intermittent is there a chance this is a bios issue?

 

[Admin]

Not sure but you can try file this, You will need usb flash driver .