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AM_Y520
Broadband 3G
Posts: 442
Registered: ‎01-31-2018
Location: LB
Views: 672
Message 41 of 95

Re: DO NOT UPDATE BIOS 4KCN43WW ON LEGION Y520

so you downloaded the files uploaded here and checked them one by one ?

I want you to check the files uploaded by me and tell me if they digitally signed or not .. I'm waiting you Mr' Software Developer

lenardg
802.11n
Posts: 312
Registered: ‎01-23-2009
Location: FI
Views: 666
Message 42 of 95

Re: DO NOT UPDATE BIOS 4KCN43WW ON LEGION Y520

AM_Y520 why not educate yourself about software signing? So next time you can verify for yourself what you are uploading.

 

Read more about code signing:

 

https://en.wikipedia.org/wiki/Code_signing

 

https://www.websecurity.symantec.com/code-signing

Lenard | (I am a Lenovo INsider - a volunteer and not a Lenovo employee) | @lenardg
ThinkPad P52 | X1 Yoga (1st)(2nd) | Legion Y530
AM_Y520
Broadband 3G
Posts: 442
Registered: ‎01-31-2018
Location: LB
Views: 663
Message 43 of 95

Re: DO NOT UPDATE BIOS 4KCN43WW ON LEGION Y520

I know what it is ..
but if I downloaded the BIOS file directly from Lenovo and then upload it here, will it lose its Digital Signature 🤔🤔🤔 ?
lenardg
802.11n
Posts: 312
Registered: ‎01-23-2009
Location: FI
Views: 661
Message 44 of 95

Re: DO NOT UPDATE BIOS 4KCN43WW ON LEGION Y520

That I don't know the answer to. I think it should not alter the file. 

 

This is why it is best just to post the link to the original file instead of downloading&uploading it.

Lenard | (I am a Lenovo INsider - a volunteer and not a Lenovo employee) | @lenardg
ThinkPad P52 | X1 Yoga (1st)(2nd) | Legion Y530
gryzor
Fanfold Paper
Posts: 28
Registered: ‎12-06-2017
Location: GR
Views: 650
Message 45 of 95

Re: DO NOT UPDATE BIOS 4KCN43WW ON LEGION Y520

Lenardg is ABSOLUTELY and 100% correct. The BIOS is an extremely sensitive piece of software, and whether any user has altered the file or not, that user IS STILL AN UNTRUSTED SOURCE as far as software is concerned. 

 

Lenardg did NOT accuse anyone of altering the files or inserting malware, he just said it's a bad practice to download and use them. Which is true.

AM_Y520
Broadband 3G
Posts: 442
Registered: ‎01-31-2018
Location: LB
Views: 645
Message 46 of 95

Re: DO NOT UPDATE BIOS 4KCN43WW ON LEGION Y520

@lenardg I was sarcastic obviously, because no it will not lose its Digital Signature
we uploaded the files directly after downloading them from Lenovo, to make it easier for the users who asked for them

you were right that we have to more cautious and thank you for that, but please please please try to more constructive !

AM_Y520
Broadband 3G
Posts: 442
Registered: ‎01-31-2018
Location: LB
Views: 641
Message 47 of 95

Re: DO NOT UPDATE BIOS 4KCN43WW ON LEGION Y520


@gryzor wrote:

Lenardg is ABSOLUTELY and 100% correct. The BIOS is an extremely sensitive piece of software, and whether any user has altered the file or not, that user IS STILL AN UNTRUSTED SOURCE as far as software is concerned. 

 

Lenardg did NOT accuse anyone of altering the files or inserting malware, he just said it's a bad practice to download and use them. Which is true.


but he said also, that he checked the files one by one and he found that they were not digitally signed and may have/be malware .. which is 1000% incorrect

Evan22
Paper Tape
Posts: 1
Registered: ‎05-24-2018
Location: US
Views: 628
Message 48 of 95

Re: DO NOT UPDATE BIOS 4KCN43WW ON LEGION Y520

Could you send  me the BIOS 40 version

AM_Y520
Broadband 3G
Posts: 442
Registered: ‎01-31-2018
Location: LB
Views: 623
Message 49 of 95

Re: DO NOT UPDATE BIOS 4KCN43WW ON LEGION Y520

SvetoslavBG
Fanfold Paper
Posts: 8
Registered: ‎05-19-2018
Location: BG
Views: 561
Message 50 of 95

Re: DO NOT UPDATE BIOS 4KCN43WW ON LEGION Y520

 My laptop stop working with after instaling4KCN43WW  black screen , dosnt want to start , drivers didnt instal , after intel driver instal laptop crashed  after and after  even with old drivers ,   so i after 8h of hard work i found that   4KCN40WW is working perfect for me . Also windows 8.1 is working fine with 4KCN43WW

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