The power button didn't work - whether plugged in or fully charged. The "electronic manual" is a QR code that is a broken link to their site.The first laptop I bought from them lasted days after the 1 year warranty expired. The second (in 2020) had keys so flimsy that when my 8 year-old daughter typed, the keys popped off, and it took 2 RMAs to get it fixed. A laptop that won't power on is the last straw. I'm never buying another Lenovo product again.