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How to downgrade BIOS on Satellite l675d-s7052
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This question is not answered. Helpful answers available: 2. Correct answers available: 1.

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Permlink Replies: 3 - Pages: 1 - Last Post: 24-May-2012 13:34 Last Post By: Tonny
Rav911

Posts: 3
Registered: 23/05/12
How to downgrade BIOS on Satellite l675d-s7052
Posted: 23-May-2012 20:22 		 
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Few days ago Toshiba service station recommended me to upgrade BIOS to 1.70 (i had 1.50). After this upgrade my WLAN adapter not working yet. Sometimes it's work 5 minutes after laptop start, sometimes more than hour.
Does anyone have any ideas how to install previous version of BIOS?
Tonny

Posts: 3,248
Registered: 21/09/09
Re: How to downgrade BIOS on Satellite l675d-s7052
Posted: 24-May-2012 09:05   in response to: Rav911 in response to: Rav911 		 
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Hi

Your notebook belongs to Toshiba US series and all BIOS versions can be downloaded here:

Satellite L675D-S7052 driver page

But I think you should update the WLan driver and should disable the power saving option for WLan card to avoid unexpected WLan issues…
Rav911

Posts: 3
Registered: 23/05/12
Re: How to downgrade BIOS on Satellite l675d-s7052
Posted: 24-May-2012 09:52   in response to: Rav911 in response to: Rav911 		 
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I know where to get BIOS... I did install wlan drivers few times on different OS and same problem on both. Question is " How to downgrade BIOS". Motherboard dont want install current or previous version... only newest one.
Tonny

Posts: 3,248
Registered: 21/09/09
Re: How to downgrade BIOS on Satellite l675d-s7052
Posted: 24-May-2012 13:34   in response to: Rav911 in response to: Rav911 		 
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The BIOS package contains an readme.txt file
There you can find all info.

The win-based BIOS version will not allow you to install older BIOS version.
But the package contains the DOS based BIOS version so you could flash the ROM module.
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