05-15-2019 02:12 AM - edited 05-15-2019 02:22 AM
the Laptop hangs before booting, FN-Key lights green.
What else can I try?
05-15-2019 03:48 PM
Welcome to the community forums.
How long that the laptop hang when booting up to Windows OS? Are you getting a blue screen with an error code? Could you try to perform a Power Drain on the laptop and check if the issue remains? Here's how https://support.lenovo.com/us/en/troubleshoot/lpt000352?CID=ww:lenovosocial:20x9m6.
Let us know how it goes.
05-15-2019 10:59 PM - edited 05-15-2019 11:20 PM
Thanks for your reply.
I did the Power Drain with no battery, with no BIOS battery, with no voltage at all for days.
No bluescreen, just a black screen. Even the BIOS screen or the LENOVO logo don't come up. Just the red LED and the green FN-Key light.
I think of a bug in the BIOS - maybe. Is there a way to reflash the BIOS with no Operating System?
05-16-2019 12:15 AM
Did you remove other battery aside from the main battery of the laptop? You don't need to remove the battery if it's internal and after you press the power button for 10 seconds, you need to plug in the charger and try to turn it on. Could you verify, how did you perform the Power Drain?
05-16-2019 02:54 AM
Thank you for your help.
I've done the following:
Have I forgotten anything?
No effect at all.
The I've done the following:
I think it's noticeable that I can press the power button for 4 seconds (or so) to power off. So maybe there is still some BIOS activity?