07-04-2016 12:12 AM
I was working on my thinkpad L421 last night and it showed some error and stated your laptop needs to be restarted. I did not read the notification clearly. Since then the laptop whenever restarted shows blank screen. Pressing F8 or thinkvantage also did not help.
After that I googled from my phone about the problem. I removed battery, pressed start key for a minute, waited for a minute, inserted the battery and restarted. It still showed blank screen. Now in the morning, after around 12 hours, I started the laptop and it showed thinkpad logo screen. The laptop was only on batteries. I was very glad but it did not move ahead even after waiting for 5-10 mins. Pressing blue thinkvantage did not help. I connected the laptop to power source and immediately the thinkpad screen went blank. Now even after performing all measures mentioned above, I cannot even see the thinkpad screen and the screen us blank like last night. Please help.