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T520 with W10 - No BIOS updates available?

2017-10-05, 17:20 PM

I have a T520. It has a SSD which I upgrded to while it still had Windows 7 Pro. Recently I upgraded to Win 10 Pro. 


My question is: I know that my BIOS version is not the latest. It's probably pretty old. I never upgraded BIOS after buying this laptop. 
When I go to Lenovo support site now, i do NOT see a BIOS version listed under Win 10 for T520. All of the BIOS updates are for Win 7 and older OS. 
Does this mean I can never update the BIOS anymore? I do not have any problems with the T520, it's running fine, but just was curious as to why Lenovo doesn't have a BIOS update for Win 10 listed under their T520 support page. 

If anyone can shed any light on this, i;d appreciate it. Thanks!

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8475 Posts

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Re: T520 with W10 - No BIOS updates available?

2017-10-05, 17:51 PM

Hello and welcome,

 

The Win 7 installer might (or might not) run on Win 10.  I haven't tried that.

 

How about using the bootable CD version - either in the internal optical drive or an external one?

 

Z.


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11380 Posts

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Re: T520 with W10 - No BIOS updates available?

2017-10-05, 19:12 PM

I think the win7 installer runs fine, but since win 10 isn't officially supported on the T520, the CD (stand-alone iso) version might be safer.


Rich


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Re: T520 with W10 - No BIOS updates available?

2017-10-06, 16:25 PM

Thanks for replies so far.

I can do the the CD / ISO method.
My fear is:

--Are there any potential dangers to using a Win 7 BIOS update on a laptop running Win 10? (even if I am using the ISO method)
--What precautions can I take to prevent/safeguard if I go through with this?

Thanks again!

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Re: T520 with W10 - No BIOS updates available?

2017-10-06, 16:48 PM

First, on any machine, there is always a slight risk when doing a BIOS update.  With the ISO method, it makes no difference what operating system (if any) is on your machine.


Rich


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Re: T520 with W10 - No BIOS updates available?

2017-10-06, 17:07 PM
Thanks. I do understand the slight risk.
Good to know the ISO method is OS independant.

I checked my BIOS version and it's 1.36
Current version is 1.46...
IDK what changes were made from 1.36 upwards as the lenovo site only mentions changes made since last (1.45) ...

I wonder if it is even worth it or if I'd gain anything from updating to latest BIOS. (in other words, how ancient IS 1.36?) . Have to ponder....
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Re: T520 with W10 - No BIOS updates available?

2017-10-08, 5:17 AM

Good day.

 

Have a look at the v1.46 readme.txt: https://download.lenovo.com/pccbbs/mobiles/8auj27uc.txt and scroll down towards the bottom. You'll see a change history, version by version.

 

Hope this helps.

Regards.


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