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geozz
Paper Tape
Posts: 2
Registered: ‎03-02-2017
Location: NL
Views: 478
Message 1 of 4

Lenovo z50-70 suddenly no longer start. The LED lights are working but nothing react

Hi everybody,

This is my first post here, i thing i posted this thread into the right topic.
This afternoon I closed my laptop in sleep mode like any other day. At home, I reopened my laptop and discover that my laptop unresponsive. Black screen but lights are on. When i plug the AC cable in, my laptop turns on automaticly, what is not normal. I removed the battery from the laptop, and I have the RAM taken out but nothing works. I've read something about flashing my BIOS via an USB, does anybody knows something about this solution? Or do you have antother solution?

My specs:

Lenovo Z50-70
RAM: 8GB DDR3
CPU: Intel i5-4210u 1.7ghz up to 2.3ghz
GPU: Nvidia GeForce 820M
OS: Windows 10 64 bit

Thank you,

Retired Support Specialist
Posts: 3,772
Registered: ‎12-24-2015
Location: IN
Views: 410
Message 2 of 4

Re: Lenovo z50-70 suddenly no longer start. The LED lights are working but nothing react

Hi there, Geozz           -

 

Thank you for writing in to the Lenovo Forum - happy to have you here today.

 

A black screen after resuming from Hibernate is often a sign of graphics driver or CPU fan errors.

 

Please perform the following:

  1. Boot the computer into Safe Mode.
  2. Once you have loaded the computer into safe mode, log in as you typically would, and then place the computer into hibernate.
  3. If the computer loads perfectly, then the problem is related to your graphics driver, and you should be able to update the driver and restore functionality. If not, then the problem may be with Windows itself. You may need to reinstall Windows.

 

Update us how it goes.

 

 

 

 

Regards,

 

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If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! 

geozz
Paper Tape
Posts: 2
Registered: ‎03-02-2017
Location: NL
Views: 406
Message 3 of 4

Re: Lenovo z50-70 suddenly no longer start. The LED lights are working but nothing react

Hi there,

 

This is not working because my laptop wont start. Only the led light is blinking and when plug in or pkug out the AC when on battery the laptop bliebs (high tone and short).

 

I can press every button but nothing happens. i tried another power supply and i connected my screen via HDMI and VGA, but nothing happens.

 

Even when i unplug my SSD and RAM nothing happens.

 

Only the led is on and the FAN is on. the processor is getting (i guess) around 40 degrees. 

 

Thank you,

Retired Support Specialist
Posts: 3,772
Registered: ‎12-24-2015
Location: IN
Views: 379
Message 4 of 4

Re: Lenovo z50-70 suddenly no longer start. The LED lights are working but nothing react

There could a chances of motherboard failure. If it is under warranty I would recommend contacting Lenovo service centres and applying the normal phone techniques to get it replaced promptly.

 

Schedule a Call-back for faster support

English 24 hours a day 7 days/week 

During business hours, you may also engage with live chat support.

 

Update us how it goes.

 

 

 

 

Regards,

 

Tap that kudos button if I helped 
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"! 

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