E14 E15 NM-C421 EC Bios Unlock

[darckreign1984]

lenovo e14
type 20rb-s0w100 s/n: PF-1WPHMQ 20/03


46J BARCODE
1381812900933
4511AB0110F
FE4A0 10D2
2A_2020-02-08


MOTHERBOARD code
fe 4a0/fe5a0 nm-c421

SOLVED

i used tutorial from here https://www.badcaps.net/forum/troubl...s-unlock/page3
post 60

after some attempts worked.


thanks

[Arsalan455]

this bios no disply plz repair
lenovo e15
type 20RD-S02U00
S/N 1BG622
NM-C421

[qayyum786]

this bios no disply plz repair
lenovo e15
type 20RD-S02U00
S/N 1BG622
NM-C421

Try

[husnu16]

Hello masters;
Lenovo Thinkpad E14
20RA003WTX
SN. PF-1C2Q3K
NM-C421 REV 1.0
Can you please remove the bios password?

I added the EC and Main bios backup.

[Maxpower3]

Hello masters;
Lenovo Thinkpad E14
20RA003WTX
SN. PF-1C2Q3K
NM-C421 REV 1.0
Can you please remove the bios password?

I added the EC and Main bios backup.

read ec 256k

[husnu16]

Can you tell me how to do this?

[SMDFlea]

Can you tell me how to do this?

Depends what model your EC programmer is and the software version....

[husnu16]

read ec 256k

Hello, its here.

[hoaca388]

Hello, its here.

Try

[husnu16]

Try

it's working. Remove password done. Thanks.

[ghassen topgsm10]

hi friends... i broked my bios of thinkpad e14 type 20rb sn:PF2N1T75 i find bios in forum i wrote it but after running it gives error 0183 :bad crcof security settings in efi variable and i can't enter bios because of password

[hoaca388]

hi friends... i broked my bios of thinkpad e14 type 20rb sn:PF2N1T75 i find bios in forum i wrote it but after running it gives error 0183 :bad crcof security settings in efi variable and i can't enter bios because of password

E14 Laptop (ThinkPad) - Type 20RB

[ghassen topgsm10]

E14 Laptop (ThinkPad) - Type 20RB

i have tried with attached file but there is bios password on boot, any help ?

[hoaca388]

i have tried with attached file but there is bios password on boot, any help ?

Post EC 256KB

[ghassen topgsm10]

this is the first backup i made but it seems not working

[testinglaptops]

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



Try...

Thankyou , Worked For My E15 NM-C421. PASSWORD UNLOCKED 100%

[EVAGINON]

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



try for test
at restart : enter Bios setup with F1 and need clear security chip
type password blank and load by default and save

restore original Bios after

thank you this brought mine back