E14 Type 20RA NM-C421 EC Bios Unlock

[santoslao]

Re: E14 Type 20RA NM-C421 EC Bios Unlock

I managed to solve.

[onizzbox]

Re: lenovo E14 nm-c421 rev:1.0 patch need

board model

E14 (Type 20RA, 20RB) Laptop (ThinkPad)

Two options to unlock this model:
1. Patch, DXE drivers
2. EC/KBC

[ScotchArg]

Re: E14 Type 20RA NM-C421 EC Bios Unlock

Hi... I need the EC bin (256mb) of Thinkpad E15 type 20RE-S1RD00 S/N PF2D8VY3
Motherboard NM-C421 Rev 1.0
i only can find one in vinafix, the laptop turn on but have many problems in boot and keyboard, i don´t have the original because i replace de ITE. Thanks in advance.

[hoaca388]

Re: E14 Type 20RA NM-C421 EC Bios Unlock

Hi... I need the EC bin (256mb) of Thinkpad E15 type 20RE-S1RD00 S/N PF2D8VY3
Motherboard NM-C421 Rev 1.0
i only can find one in vinafix, the laptop turn on but have many problems in boot and keyboard, i don´t have the original because i replace de ITE. Thanks in advance.

Sorry, this is E14 thread. please create a new topic for E15, but need to upload your bios to determine the correct version of Ec because when extracting bios from Lenovo homepage, there will be 2 bios versions for this model (correspondingly there will be 2 versions Ec )

[ScotchArg]

Re: E14 Type 20RA NM-C421 EC Bios Unlock

Hi... I presume that repair fail but you update one 128kb dump and this model is 256kb, you must set the kb in the programmer before read the dump.

[ScotchArg]

Re: E14 Type 20RA NM-C421 EC Bios Unlock

Hi Hoaca... E14 and E15 have the same motherboard (NM-C421).

[ScotchArg]

Re: E14 Type 20RA NM-C421 EC Bios Unlock

Sorry, this is E14 thread. please create a new topic for E15, but need to upload your bios to determine the correct version of Ec because when extracting bios from Lenovo homepage, there will be 2 bios versions for this model (correspondingly there will be 2 versions Ec )

Original working main dump

[hoaca388]

Re: E14 Type 20RA NM-C421 EC Bios Unlock

Original working main dump

ec

[ScotchArg]

Re: E14 Type 20RA NM-C421 EC Bios Unlock

ec

I don´t understand... That is my main bios, i want the EC dump (256kb).
This is the bios update of Lenovo page...

[hoaca388]

Re: E14 Type 20RA NM-C421 EC Bios Unlock

I don´t understand... That is my main bios, i want the EC dump (256kb).
This is the bios update of Lenovo page...

Here

[ScotchArg]

Re: E14 Type 20RA NM-C421 EC Bios Unlock

I don´t understand... That is my main bios, i want the EC dump (256kb).
This is the bios update of Lenovo page...

@hoaca388 i try this EC and work but have a same error. Can you extract the main bios dump of the Lenovo Page bios update? I already update. Thanks!

[ScotchArg]

Re: E14 Type 20RA NM-C421 EC Bios Unlock

I don´t understand... That is my main bios, i want the EC dump (256kb).
This is the bios update of Lenovo page...

This is de bios update of the Lenovo page

[ScotchArg]

Re: E14 Type 20RA NM-C421 EC Bios Unlock

Original working main dump

Can you CLEAR ME this Dump for try. Thanks!

[hoaca388]

Re: E14 Type 20RA NM-C421 EC Bios Unlock

can you clear me this dump for try. Thanks!

clear me

[Dan20701]

Re: E14 Type 20RA NM-C421 EC Bios Unlock

Hello, Sorry I don't mean to hijack, What chip is the EC chip ?
I have a locked E14 and I have a bad CRC error.
I have tried all the dumps I can find maybe I need to program the EC.

Any info will be great thanks.

[hoaca388]

Re: E14 Type 20RA NM-C421 EC Bios Unlock

Hello, Sorry I don't mean to hijack, What chip is the EC chip ?
I have a locked E14 and I have a bad CRC error.
I have tried all the dumps I can find maybe I need to program the EC.

Any info will be great thanks.

Looks like an I/O chip. Usually it can be a big chip with lots of pins.
https://www.google.com/search?q=EC+c...h=722&dpr=1.25

[Dan20701]

Re: E14 Type 20RA NM-C421 EC Bios Unlock

Thank you hoaca388, Not what I wanted to see but it is what it is, I do
not have the programmer for this not unless the T56 can do it.
Maybe I will treat myself. Thanks mate.

[williaan]

Re: E14 Type 20RA NM-C421 EC Bios Unlock

Please. i try auto patch v0.2 but not work.
Lenovo E14 Model 20RB
Winbond 25Q128JVSQ
I/O- IT8227E-256 - 1948-BXA


Can anyone clean?

tks

[Aditya11ttt]

Re: E14 Type 20RA NM-C421 EC Bios Unlock

Please. i try auto patch v0.2 but not work.
Lenovo E14 Model 20RB
Winbond 25Q128JVSQ
I/O- IT8227E-256 - 1948-BXA


Can anyone clean?

tks

Flash io once and try

[williaan]

Re: E14 Type 20RA NM-C421 EC Bios Unlock

Flash io once and try

How?
can you explain me?