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What's DOS?
Posts: 1
Registered: ‎05-02-2017
Location: MY
Views: 443
Message 1 of 2

Lenovo S100 Bootup issues

Hello. My laptop currently faces a boot-up issue : 

  • The screen only display a non-flickering, single underscore (" _ ") at the top right corner
  • BIOS inaccessible(F1, F2, F8, DEL, even hands running through all keys on keyboard)
  • Disconnecting the hard disk did not change anything.
  • It restarts itself after a few seconds. 
  • Pressing power button sometimes turns it off, sometimes it doesn't
  • Holding power button for roughly 10 seconds forces it shut down.
  • Undoing the battery and holding the power 30 seconds does not help.
  • OneKey Rescue results in the same affromentioned display
  • No audible harddisk spinning sound.

I suspects that this is a BIOS issue? It may be a hardware failure too.

Thanks in advance

Support Specialist
Posts: 180
Registered: ‎11-28-2016
Location: GB
Views: 397
Message 2 of 2

Re: Lenovo S100 Bootup issues

Hello throwaway9304


Thank you for using the Lenovo forum


I suggest contacting your local support as this may need assesing for a repair. 

This is the link to the phone list where you can find these numbers

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