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1 Posts

04-05-2018

US

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Lenovo Thinkpad T460s not booting

2018-04-05, 1:06 AM

I have searched all forums including this one and have been unable to find a resolution to my issue.

I have had my laptop (Thinkpad T460s) for just over a year now and use it for work daily. I was using it with no issue at lunch, but when I opened the lid around 3 hours later - the screen was black and the laptop seemed to be stuck in sleep mode. I tried a hard reset and now I can not even get the Lenovo post menu to show.

If I press the power button, the keyboard momentarily turns on the backlighting and the power button stays illuminated, after about a minute the power button turns off. This entire time the laptop screen is completely black, I don't see the Lenovo post menu and therefore have no acces to the BIOS or OS.

I have tried using the hardware reset button on the bottom of the laptop, removing the 2 discreet batteries, removing the CMOS battery, removing all batteries and resetting the RAM. None of this has gotten me any headway on resolving this issue. I am going to try contacting technical support but am hoping someone may help me find a quick and simple resolution to this issue. 

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9605 Posts

12-27-2009

CA

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Re: Lenovo Thinkpad T460s not booting

2018-04-05, 5:37 AM
Try the old trick of removing both batteries and with the AC adapter unplugged:
1) Tap the power button 10 times in rapid succession
2) Press and hold the power button for 30 seconds
3) Re-attach the AC and try to boot

W520: 2960XM, Q2000M @ 1091/1380, 32GB RAM, 500GB&750GB HDD & 500GB SSD, FHD&MB168B+
X61T: L7500, 4GB RAM, 500GB HDD, XGA screen, Ultrabase
W550s: 5600U, K620M at 1164/1281, 16GB RAM, 512GB SSD, 3K touchscreen
X200s: SL9400, 6GB RAM, 64GB SD card, WXGA+ screen
TPT1: 1839-23U
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2 Posts

03-21-2020

RU

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Re:Lenovo Thinkpad T460s not booting

2020-04-07, 6:28 AM

I have almost the same problem: notebook lenovo t460s. Could anybody explain such issue?

It's really so scarry then so credible computer have a such problem. Warranty is over. 

In my experiense - it's can be fixed by computer case warping. 

 

I'am really looking forward on your explanation and the support from this community. How did you resolve this problem?

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2 Posts

04-03-2020

PK

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Lenovo Thinkpad T460s not booting

2020-04-07, 19:59 PM
Hey, i have almost the same problem. Did you remove the CMOS battery? How? Where is the CMOS battery in T460s? I couldn't find it, so i did the rest; removing batteries, RAM, pressing power button a million times with various intervals, pressing the emergency button, etc etc etc, none of them worked.
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8185 Posts

01-13-2008

US

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Re:Lenovo Thinkpad T460s not booting

2020-04-07, 21:52 PM

Page 79.  Hardware Maintenance Manual - ThinkPad T460s

 

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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9 Posts

02-03-2020

US

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  • Message 6 of 11

Lenovo Thinkpad T460s not booting

2020-04-08, 2:47 AM
Troubleshoot it like it had a bad lcd. Plug in a external monitor. Try all the other stuff in this thread as well. Make sure the AC adapter is working.
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1 Posts

04-08-2020

US

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Re:Lenovo Thinkpad T460s not booting

2020-04-08, 14:56 PM

Recently switched from well-used but slow T520 to T460.  Saturday experienced first incidence but managed via Ctrl + Alt + Del to bring up sign-in PIN, thought likely just a fluke.  Two days later zippo, only cursor which can move around dark screen.   Hopefully someone out there can divine solution or Lenovo will respond to apparently burgeoning issue.

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2 Posts

03-21-2020

RU

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  • Message 8 of 11

Lenovo Thinkpad T460s not booting

2020-04-08, 15:25 PM
Most often this problem (black screen (without backlight) and only keyboard backlight as at normal start and nothing else) appears when I use the computer on my hands or legs or If I take the notebook by one hand. It never happened on the table. If the computer is running - the problem leads to stopping the cursor and absolutely not responding at any typing beside power bottom. But for few next minutes of knocking out the machine, it starts as normal. AC is completely OK, Plugging of the external monitor not resolved this problem.
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1 Posts

06-20-2020

US

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  • Message 9 of 11

Re:Lenovo Thinkpad T460s not booting

2020-06-20, 3:03 AM
Hello, can anybody tell me how to fix this? Laptop won’t power/turn on. When I press the power button both lights on the Ethernet port flash. When I plug the power cable the green round power button blinks 3 times. Also, the green light on the power cable port in the laptop turns green when I plug the adapter. These are the only signs of life for my laptop and I really need it for work. I’m desperate. Thank you for your help!
E3DBCA0D-BD9C-4CEC-944C-8BC041A482CE.jpeg 6BEBBD5B-07F2-4C2B-B808-280C4B3FA898.jpeg F5289A44-15A8-4CD7-94DA-8BEEAC2AB994.jpeg
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1 Posts

07-17-2020

NZ

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  • Message 10 of 11

Re:Lenovo Thinkpad T460s not booting

2020-07-17, 14:15 PM

Hi,

 

I have the very same issue. Did you find a solution?

 

Mines out of warranty and the repair guy says main board is faulty and quoted around 500 bucks for repair/replacement. 

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