English Community

ThinkPad NotebooksThinkPad: T400 / T500 and newer T series Laptops
All Forum Topics
Options

19 Posts

01-27-2012

Germany

39 Signins

381 Page Views

  • Posts: 19
  • Registered: ‎01-27-2012
  • Location: Germany
  • Views: 381
  • Message 1 of 9

T420S - no boot/startup anymore

2012-01-27, 12:33 PM

Hi,

 

my T420S behaves kinda weird: It simply doesnt startup anymore. Screen is blank (cant enter/see BIOS), no usb-power, no functionkeys are working. I already swapped the Ra, Hdd, Battery with no luck. Even in the docking station the situation is similar. This tuesday everything was fine, now it isnt anymore.

 

Just to clarify: it no a linux/windows issue, since it doesnt even come to this point. I also checked for damaged usb port (this wasnt the case).

 

Any ideas? Similar behaviors?

 

Regards,

Falko

 

 

Reply
Options

260 Posts

01-24-2011

Columbus, OH

968 Signins

5012 Page Views

  • Posts: 260
  • Registered: ‎01-24-2011
  • Location: Columbus, OH
  • Views: 5012
  • Message 2 of 9

Re: T420S - no boot/startup anymore

2012-01-27, 15:09 PM

Doesn't sound promising.

 

Does the unit actualy power on. Your getting a green ring around the power button?

Reseat your RAM first.

 

Next option you can try to remove the keyboard, then remove the BIOS battery and try powering on again after the unit has been sitting for about an hour.

 

If the system has zero power whatsoever (AC only without battery or battery only) then sounds like it's time to call up Lenovo for a warranty repair.

 

 

Reply
Options

19 Posts

01-27-2012

Germany

39 Signins

381 Page Views

  • Posts: 19
  • Registered: ‎01-27-2012
  • Location: Germany
  • Views: 381
  • Message 3 of 9

Re: T420S - no boot/startup anymore

2012-01-27, 15:30 PM

Already tryed this - no luck. Conclusion (for me) seems actually that the mainboard is dead.

Reply
Options

2516 Posts

03-19-2009

DE

5608 Signins

73413 Page Views

  • Posts: 2516
  • Registered: ‎03-19-2009
  • Location: DE
  • Views: 73413
  • Message 4 of 9

Re: T420S - no boot/startup anymore

2012-01-27, 17:30 PM

Check all USB port, whether they are well and there is no part missing and no short.

--------------------------------
My home-forum: http://www.thinkpad-forum.de
Wiki: Deutsches ThinkPad-Wiki English ThinkWiki
My ThinkPad-Collection
Coffee must be like women's eyes: deep black & shiny. ThinkPads have to be like men's feet: deep black & matte!
Reply
Options

267 Posts

02-04-2008

Canada

536 Signins

14076 Page Views

  • Posts: 267
  • Registered: ‎02-04-2008
  • Location: Canada
  • Views: 14076
  • Message 5 of 9

Re: T420S - no boot/startup anymore

2012-01-28, 0:05 AM

Also check that you don't have an SD card in the slot.

 

Something similar happened to me, I inserted an SD card into the slot of my (now dead) x200 the day before, then next day the thing wouldn't boot, no BIOS, nothing. Completely unresponsive. Was about to take the x200 apart trying to troubleshoot the problem until I realized there was an SD card in the slot... plucked it out, rebooted, no problems.

 

Strange but true. Just throwing it out there...

Reply
Options

19 Posts

01-27-2012

Germany

39 Signins

381 Page Views

  • Posts: 19
  • Registered: ‎01-27-2012
  • Location: Germany
  • Views: 381
  • Message 6 of 9

Re: T420S - no boot/startup anymore

2012-01-29, 13:09 PM

No SD-card in there and the usb-ports are fine. The symptoms dont change even with no ram installed at all. Seems like a dead notebook currently.

Reply
Options

9605 Posts

12-27-2009

CA

3311 Signins

95268 Page Views

  • Posts: 9605
  • Registered: ‎12-27-2009
  • Location: CA
  • Views: 95268
  • Message 7 of 9

Re: T420S - no boot/startup anymore

2012-01-29, 17:00 PM
If there's no RAM, the system should make a 1-3-3-1 beep sequence. If not, it sounds like the motherboard is at fault.

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
Reply
Options

2516 Posts

03-19-2009

DE

5608 Signins

73413 Page Views

  • Posts: 2516
  • Registered: ‎03-19-2009
  • Location: DE
  • Views: 73413
  • Message 8 of 9

Re: T420S - no boot/startup anymore

2012-01-30, 19:36 PM

Did the laptop get contact with liquids in the past? In that case its behavior is the consequence.

--------------------------------
My home-forum: http://www.thinkpad-forum.de
Wiki: Deutsches ThinkPad-Wiki English ThinkWiki
My ThinkPad-Collection
Coffee must be like women's eyes: deep black & shiny. ThinkPads have to be like men's feet: deep black & matte!
Reply
Options

19 Posts

01-27-2012

Germany

39 Signins

381 Page Views

  • Posts: 19
  • Registered: ‎01-27-2012
  • Location: Germany
  • Views: 381
  • Message 9 of 9

Re: T420S - no boot/startup anymore

2012-02-01, 11:28 AM

No liquids, no sound. I contacted support and they will pick it up sooner or later. Lets see how long it takes for UPS and Lenovo to examine the case. :)

 

Ty so far for all ideas.

Reply
Forum Home

Community Guidelines

Please review our Guidelines before posting.

Learn More

Check out current deals!

Go Shop
X

Save

X

Delete