Start by making sure its plugged in and charging. most laptops have a light that is on if the cord is plugged in.if its plugged in and there is no light one wiggle on the connection on your power cord. start at the wall and check every connection. if the light blinks than you power cord is bad or the power port in the laptop has disconnected from the mother board. Some computer stores will have a loaner universal laptop charger you can borrow. I recommend borrowing there universal before you buy a new power cord
Here below are possible causes and troubleshooting steps of laptop that can't power on, hope it may help:
Possible causes:
1. AC adapter failure.
2. Power jack failure.
3. Motherboard failure.
Possible troubleshooting steps and repair solutions:
1. Test your hp dv6-2117ax ac adapter with a digital multimeter. It's possible that you have a failed AC adapter. If you don't have a multimeter, test your laptop with another known good AC adapter.
2.It's possible that power jack (socket where you plug the AC adapter) is broken. Remove the motherboard and take a closer look at the power jack. In some cases you can fix the jack by resoldering it on the motherboard. In other cases you have to replace the jack with a new one. Using a multimeter, test if the power goes to the motherboard through the jack.
3. If replacing the AC power adapter and jack on the motherboard doesn't help, most likely you have a bad motherboard. Replace the motherboard.
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