Question Lenovo B 50-70 shuts down after 5 seconds of power up.

Aug 29, 2019
Lenovo B 50-70 laptop doesn't turn on. It shut downs after 5 seconds silently.Display is off and no keyboard light is present, tried all quick fixes like
  1. Pressing power button 10 times consequently , holding it for 30 seconds without battery
  2. Replacing RAM
Nothing seemed to work. Please suggest a solution.
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