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Matt1979 Honor Student
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Missing CT number

15-ac157cl
Microsoft Windows 10 (64-bit)

Updated BIOS with 12/2018 update and now get the missing CT number. That's the only change. System Information says CT number is "HP".

 

Can't roll back bios because I stupidly tried the bios update again. Is there somewhere I can get the previous BIOS file? UPDATE: I found the previous BIOS. Attempted to use it and the update option was greyed out.

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Provost Provost
Provost
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Missing CT number

Hi:

 

You can find all of the previous BIOS versions on your notebook's support page.

 

On the BIOS update file you installed, click on the Previous Versions tab...

 

https://support.hp.com/us-en/drivers/selfservice/HP-15-Notebook-PC-series/8502685/model/9111893

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Matt1979 Honor Student
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Missing CT number

Thanks. I tried the previous version but update wasn't allowed.

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