{"id":7528,"date":"2018-10-28T23:59:00","date_gmt":"2018-10-28T22:59:00","guid":{"rendered":"http:\/\/159.69.82.204\/win\/?p=7528"},"modified":"2020-09-15T22:59:25","modified_gmt":"2020-09-15T20:59:25","slug":"lenovo-thinkpad-uefi-settings-bricks-devices","status":"publish","type":"post","link":"https:\/\/borncity.com\/win\/2018\/10\/28\/lenovo-thinkpad-uefi-settings-bricks-devices\/","title":{"rendered":"Lenovo ThinkPad: UEFI settings bricks devices"},"content":{"rendered":"

[German<\/a>]Owners of current Lenovo ThinkPad models who changes some UEFI\/BIOS settings run the risk of breaking their devices. Here is some information.<\/p>\n

<\/p>\n

Devices fails with black screen<\/h2>\n

\"\"The problem has been running through various Lenovo forums for several months now and is also a topic at reddit. A device owner describes the problem<\/a> like this:\"\"<\/p>\n

Thinkpad X1 Yoga (3rd Gen) Stuck at Black Screen After Enabling \"Thunderbolt BIOS Assist\"<\/p>\n

Hello, exactly one week ago, I changed enabled \"Thunderbolt BIOS Assist\" in the BIOS to support Linux.\u00a0 Following this, the system refused to boot to anything but a black screen.\u00a0 Thus, I sent the machine in for depot repair.\u00a0 I just received the machine back again today and the same thing occurred after enabling the same setting.\u00a0 After a long series of calls, I was told that no one is authorized to report BIOS bugs and that I should post here instead.\u00a0 I sincerely hope this is fixed, as this is a major error that required a motherboard replacement previously and will most likely require one again.\u00a0 I have started a new ticket for this repair and will be receiving a box tomorrow.\u00a0 However, I wanted to make sure this is passed along to someone who can fix this error.<\/p><\/blockquote>\n

The user wanted to enable the Thunderbolt BIOS Assist BIOS\/UEFI option for a Linux installation. After saving the changes, the Thinkpad X1 Yoga no longer booted, but got stuck with a black screen. Other users confirm the effect in theLenovo forum thread.<\/p>\n

\"Lenovo<\/a>
\n(Source: reddit.com, Click to zoom<\/a>)<\/p>\n

On reddit.com there is this thread<\/a> where another user describes it for a Lenovo Thinkpad P72 and posted the photo above:<\/p>\n

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New Thinkpad P72 – BIOS\/UEFI corrupted, just black screen..<\/h4>\n

So I just received my P72, and it's FUCKED<\/strong>. If anyone have a tip on what to do, I'd like to hear it!<\/p>\n

First thing I did was booting into BIOS and setting up my config – for RAID among other things. After the settings got saved'n'exit, the laptop seems completely bricked.<\/p>\n

Suddenly I can't boot into BIOS, can't boot from attached USBs or the actual SSDs onboard either.<\/p>\n

I only see the lenovo's \"To interrupt normal startup, press Enter<\/em>\" splash screen, which is either followed by a black screen (but you can tell the screen is lit) OR<\/strong> a list of error messages and the option to continue normal startup or F1 into setup.<\/p>\n

I tried resetting the CMOS, unplugging battery\/AC, removing the RAM \/ drives, trying to update the BIOS via a bootable USB with the BIOS flash update set up etc., all in the various orders possible, but to no help.<\/p>\n

Is the laptop just a sad case of dead-on-arrival? It worked PERFECTLY the very first time i booted.<\/p>\n

https:\/\/i.redd.it\/6gmdjkoltkr11.jpg<\/a>
\nhttps:\/\/i.redd.it\/uq1jk9yuskr11.jpg<\/a><\/p>\n

Sometimes the \"0251: System CMOS Checksum bad – Default configuration used.\" error doesn't appear btw.<\/p><\/blockquote>\n

Also this Lenovo forum post<\/a> reported the issue for a Lenovo P52, when the BIOS\/UEFI settings for Thunderbold support for Linux installation has been changed.<\/p>\n

The case was probably first taken up at notebookcheck.net<\/a>, where it is unclear which Lenovo devices are affected exactly. At notebookcheck.com the following devices are listed as affected:<\/p>\n