Step 1: To summon Windows Settings click on the Windows logo icon and then click on the gear (settings) icon. After you update your graphics driver, your brightness should return to normal.First, unplug the AC adapter from the laptop and remove the battery.
(after updating, after restarting my laptop, my screen keeps flashing.
It could be damaged or burned and stop the power supply. LENOVO has been kind enough to supply the scripts needed to do this, along with some. Therefore, back up all your data on an external hard drive and perform a system restore.
I do many tips & tricks to power on my pc like that by holding power on button for 30 sec but not working I did it 3 to 4 times but not working then after I try another way by inserting nova pin in laptop to turn on my power button its working for two or 3 second my pc on but Why is my lenovo laptop not turning on Help me find my product/serial number.