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RastoB
Paper Tape
Posts: 2
Registered: ‎12-28-2017
Location: SK
Views: 365
Message 1 of 4

ThinkPad L460 -> after bios update to 1.30 troubles

Please help, after update bios to 1.30 on ThinkPad L460 model 20FVS1DG00 after a while a blue screen or computer restarts - cca 30 min or less. After restart no disk - no boot. I have to turn off laptop and after power up everything  is ok. Downgrade bios to 1.29 is not possible. Its a bug in this ver 1.30? I had an older version 1.29 before and no symptoms. 

 

Many thanks.

Community SeniorMod
Community SeniorMod
Posts: 7,311
Registered: ‎01-13-2008
Location: US
Views: 336
Message 2 of 4

Re: ThinkPad L460 -> after bios update to 1.30 troubles

Hello and welcome,

 

In a quick reading of the 1.30 README I don't see a roll-back firestop between 1.30 and earlier versions.

 

Is there a roll-back/downgrade prevention switch in BIOS configuration?  Maybe UEFI BIOS Update Option -> Secure Rollback Prevention?

 

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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RastoB
Paper Tape
Posts: 2
Registered: ‎12-28-2017
Location: SK
Views: 327
Message 3 of 4

Re: ThinkPad L460 -> after bios update to 1.30 troubles

Hello, 

yes in UEFI bios is a Secure Rollback Prevention. I try disable, but nothing. . Olso I enable ... End Users flash or like that name. Allways the same. Can't back to old bios.

Community SeniorMod
Community SeniorMod
Posts: 7,311
Registered: ‎01-13-2008
Location: US
Views: 319
Message 4 of 4

Re: ThinkPad L460 -> after bios update to 1.30 troubles

Are you actually trying to execute the 1.29 exe at the bottom of this page?  What happens when you do?

 

https://pcsupport.lenovo.com/ec/en/products/LAPTOPS-AND-NETBOOKS/THINKPAD-L-SERIES-LAPTOPS/THINKPAD-...

 

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

 

  Communities:   English    Deutsch    Español    Português    Русскоязычное    Česká    Slovenská    Українська   Polski    Türkçe    Moto English

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