06-22-2018 04:39 AM
Recently I pushed the power button to start-up my laptop. Nothing happened. I repeatedly pressed it, did not see the keyboard light up, nothing. I unplugged everything. Pressing the laptop mouse pad did cause it to beep as if clicking something. But the screen remained black. I fortunately had another older pc, and a search topic said to press and hold the power button for 20 seconds. That worked and the screen displayed. The battery was fine, it was not having let it drain out.
Any idea what happened and why? This was before the recent Lenovo update package with bios update. The problem did not repeat.
Solved! Go to Solution.
06-22-2018 05:55 AM - edited 06-22-2018 05:57 AM
You don't list the model number of your device nor the operating system. There are ways you possibly could find a clue as to what happened, but I really wouldn't worry about it if it's working. If you're using Windows, keep an eye on your Event Viewer > Microsoft > System for clues to things that could be amiss. Use Lenovo Vantage (again, if you're using Win8 or 10) to keep all of your drivers and BIOS up to date and run a hardware scan once in a while and you should be fine.
Pressing and holding the power button for a minute discharges static in the machine and resets the CMOS (usually). It's the equivalent of unplugging a desktop computer and holding its power button for a minute, then opening it up and prying out the CMOS battery for a few minutes. Sometimes, you just have to get all the juice out of a computer to get a proper reset. There are lots of capacitors and such that can hold a charge long after you unplug a computer and remove the battery.
01-13-2019 08:19 AM - edited 01-13-2019 08:21 AM
I have a Lenovo IdeaPad 330S15ARR on windows 10 product no 81FB which I use all day every day and at certain times of the day not on startup I get a black screen but I can still hear the voices or music. I have to reboot and it is annoying doing this 4 or 5 times a day. Any help would be appreciated.
04-06-2019 01:39 AM
Same problem, upgraded my Lenovo Yoga Pro 2 to Windows 10, worked fine for a couple of years, then the screen started going black at startup or at wake up right after the Lenovo logo display. And now way of bringing it to life except after 10 or so boots. Had to revert to factory settings several times (lost my entire system twice this way). Works fine under Windows 8.1, but when I upgrade to Windows 10, the black screen issue returns. Emails to Lenovo and to Microsoft were to no avail, the support specialists met them with incredulity. Shame on Lenovo for ignoring what is obviosly a widespread issue with their hardware and not making it compatible with Windows 10, while claiming that it is. A real shame, because the Yoga Pro 2 is otherwise a very well built machine, but I will be wary of buying Lenovo products given that they cannot figure out the compatibility issues, and I have lost my files multiple times because of this.
01-17-2020 01:41 AM - edited 01-18-2020 12:25 AM
--- HERE IS THE SOLUTION --- HERE IS THE SOLUTION --- HERE IS THE SOLUTION --
There was many who got the Black Screen and fan 100% airflow after upgrade the BIOS ver ...w44 using the Lenovo supported app Vantage.
We try all Key combinations, hold 60 sec ON button, use the Novo swtich. - Nothing helps. But here is the solution:
The only way out was to open the labtop and clear the CMOS memory, by remove the coin battery CR2032 for a while, but this is only who can hold a srew driver and have technical skill.
For me an many others was the only why to solve the black screen to reset the CMOS memory!
Herewith a link to view how to open backplane of Lenovo V510