Invalid Feature Byte - CRC fail

[RajGeo]

It seems my featurebyte not working with a virgin motherboard which already accept to save serial,product,build id,CTnumber etc.

I tried uppercase-lower case combination, bios update but no luck

could any one have any idea on it

Feature byte=2U3E 3X47 5K6J 6S6b 7H7M 7Q7S 7W7a 7m7s aBap aqau b7bm dUdp dq .qG

ps: I copied  it from partsurfer and it is matching with the sticker on body as well

TAI

RajGeo

[mdklassen]

CRC == Cyclic Redundancy Check

When you have a string of bytes, a CRC is calculated, and is appended to those bytes.

If you write those bytes (plus the CRC) to a disk-drive, and then, later, read back those bytes (plus the CRC),

a new CRC is calculated, from the string of bytes, and is compared to the "old" CRC.

If the "new" CRC does not match the "old" CRC, the writing/reading process is corrupt, e.g., "I/O error".

In your case, some of those bytes you copied from PartSurfer are the CRC for the rest of the bytes.

This implies that you have incorrectly copied those bytes.

I wonder about the "dot" ('.') that you have cited in your message.  Should it be present?

[RajGeo]

Many thanks for reply.

It is normal to have such "." on  featurebyte which I found in differnec pc;s too. But it seems longer (45characters) comparing to others.  

there are no previous setting saved on any of the fileds - featurebyte,SKU number,BUILT ID, Serial no, product number.

All fields except  featurebyte  accepting new values.

[mdklassen]

> Feature byte=2U3E 3X47 5K6J 6S6b 7H7M 7Q7S 7W7a 7m7s aBap aqau b7bm dUdp dq .qG

On other computers, how many characters do you see?

Have you tried just entering: "2U 3E 3X 47 5K 6J 6S 6b 7H 7M 7Q 7S 7W"

and not entering this partial: "7a 7m 7s aB ap aq au b7 bm dU dp dq .qG" ??

Both parts are the same number of characters, if you exclude the "dot".

It seems odd that part of the information is strictly upper-case, while some is strictly lower-case'.

[RajGeo · Accepted solution]

Dear mdklassen,

thanks again.

Get solved the problem by copying featurebyte from Service Media Library bios simulator .

Still wondering why  they put wrong sticker on pcs as well as Partsurfer.

the right feature byte is

2U3E3X47676J6S6b727B7H7M7R7S7W7m7saBb3da.3Y

cheers.....

Raj

[Ulogdono]

Got the same Problem. I switch the Mainboard of a Probook 650 G2 and entered FeatureByte from the Backcover and from Partsurfer.

Featurebyte is

3X47676J6S6Z6b7H7M7Q7W7saBaEapaqawbhdQdUeh.QD

But BIOS won't accept it.

Pls help to find the right Featurebyte

[MASE101]

 I have same issue and have had to open a case to resolve this. 

Information from case tag does not work and the number from PartSurfer does not work.

[PopoChubbs]

Hi Raj! I know this is from a ways back, but I've run into the same issue involving Feature Byte being incorrect. I got to the Service Media Library Simulator, but I don't know where to go from there. Can you point me in the right direction? I would really appreciate the help!

Thank you Raj,

Popo

[kevin-t]

Hello,

Thank you for posting in this thread. Unfortunately based on when the last response was made, I have closed this thread to help keep comments current and up to date. We recommend starting a new thread for your issue. 
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