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KevCalifornia
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Posts: 2
Registered: ‎06-13-2016
Location: US
Views: 226
Message 1 of 5

BIOS Update EXE Generates WRONG Checksum - Yoga 2 11 Haswell

The BIOS update EXE and associated readme files in question are located at: https://pcsupport.lenovo.com/us/en/downloads/DS101717 .

 

(Haswell) BIOS Update
File name: aacn94ww.exe
Windows 8.1 (64-bit)/Windows 10 (64-bit) Ver:94 Date:16 Sep 2015 Size:4.2 MB

 

Lenovo's checksum:
MD5:fd1e57129d33b37876867d941baa0fbc
SHA1:a4713e2681533f22380ced96e25441d658ce54ab
SHA-256:f5dab70d4c1a9612fc226ab72c7fcd85019e7f27a3d5b961030b6a442f8a11c2

 

I'm getting:
MD5:7939c53af2ec553d9fa34218b65cb11e
SHA1:5a1e1708a48df7e1aa3eefeb04b1e4cc4296fe62
SHA-256:efdaec777b8b15743da590e9eaa9e81672f67de50418d8a4954d605482ee7ca8

 

-----------------

 

(Haswell) README for BIOS Update
File name: aacn94ww.txt
Windows 8.1 (64-bit)/Windows 10 (64-bit) Ver:94 Date:16 Sep 2015 Size:4 KB

 

Lenovo's checksum:
MD5:5c598800f400ee0aeb038b5f50b3587a
SHA1:bac94b94a4bf0adc2de53772a398b7a0b97797f1
SHA-256:db0ca7eeba04fc8c5cc4934dc6f46f2710662c170a55bbbdc16a5b8c4fd41e74bdc16a5b8c4fd41e74

 

I'm getting:
MD5:e8c1e355230c2f44d2beb8a216d96dc1
SHA1:7771c2351f216f94335759bc3394a4bb49968e69
SHA-256:ef4ff009b164eac5bbcfea715a4d9e431f1538f71d0c6b21c31ecdb6312dcfae

 

Two different checksum tools were used to verify my results.  

 

It would be great if someone at Lenovo could verify that the files as well as their checksums are correct.

 

 

 

Community SeniorMod
Community SeniorMod
Posts: 6,884
Registered: ‎01-13-2008
Location: US
Views: 219
Message 2 of 5

Re: BIOS Update EXE Generates WRONG Checksum - Yoga 2 11 Haswell

I'm not from Lenovo, but I see the same checksums that you do.

 

You've posted in the right place.

 

Z.


The large print: please read the Community Participation Rules before posting. Include as much information as possible: model, machine type, operating system, and a descriptive subject line. Do not include personal information: serial number, telephone number, email address, etc.


The fine print: I do not work for, nor do I speak for Lenovo. Unsolicited private messages will be ignored - questions and answers belong in the forum so that others may contribute and benefit. ... GeezBlog

 

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Administrator
Administrator
Posts: 6,746
Registered: ‎09-03-2014
Location: SK
Views: 192
Message 3 of 5

Re: BIOS Update EXE Generates WRONG Checksum - Yoga 2 11 Haswell

Hello Kev, welcome to the Community,

 

Thanks for pointing this out, I've passed the information along to the appropriate team who will be able to correct the issue.

Andy


English Community Leader


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Administrator
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Message 4 of 5

Re: BIOS Update EXE Generates WRONG Checksum - Yoga 2 11 Haswell

This appears to have been fixed and would be grateful if someone could confirm.

Andy


English Community Leader


Please remember to come back and mark the post that you feel solved your question as the solution, it earns the member + points


Did you find a post helpfull? You can thank the member by clicking on the star below their post awarding them Kudos


T430 2347-G7U W8 x64, Yoga 10 HD+, Tablet 1838-2BG, T61p 6460-67G W7 x64, T43p 2668-G2G XP, T23 2647-9LG XP, plus a few more.


Please don't ask me questions by Personal Message; questions belong in the forums.


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KevCalifornia
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Posts: 2
Registered: ‎06-13-2016
Location: US
Views: 133
Message 5 of 5

Re: BIOS Update EXE Generates WRONG Checksum - Yoga 2 11 Haswell

Hi Andy,

 

I can confirm that Lenovo only updated the published checksums for the two Yoga 2 11 Haswell BIOS update files, aacn94ww.exe and aacn94ww.txt, so that they now match what I was coming up with in the original post.  The files were not modified, only the published checksums.

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