Why does my keyboard flash between caps, num lock, and scroll lock? It's also not letting me type. How do I fix this? - Quora
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hp elitebook 840 G1 Power Button and Caps lock Flashing 1 Time Before Off Laptop Fix - No Display - YouTube
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hp laptop no display caps lock blinking 5 times long and 3 time short - HP 250 G7 Laptop no display - YouTube
![HP G61 laptop wont boot- display stays off, caps and num lock indicators blink repeatedly - Super User HP G61 laptop wont boot- display stays off, caps and num lock indicators blink repeatedly - Super User](https://i.stack.imgur.com/qdmHm.png)