I have a Cisco router, the original adapter is 5V2.5A, the router shell standard 5V2.0A. But my power cord (5V2.5A end) extended by two meters, the router does not start. Positive and negative is completely correct, to extend the line intact, no damage, no short circuit, welding point intact. For a 9V0.8A adapter can be used, but the router has sound. Ready to change another adapter, I would like to ask me to add voltage or increase the current? How much do I use the adapter, how many of the adapter? I can only extend the low-voltage side, and then I am ready to change an adapter, for a line after the extension can be used properly adapter, but just when I use the 9V adapter, the motherboard has been burned, smoke, But as met this situation, I still do not understand whether it should be applied to the voltage or increase the current, or that I use the big, I can directly change the adapter. Thank you, but there is said that the increase in voltage, say that the current, I am confused. The The More
You put the charging port inserted on the computer more than a few times, change the angle, if not, put the power adapter connector and extension cord plug to see if you can charge into the electricity
If you still can not work, reset the SMC: shutdown, start immediately press the left side of the shift + control + option + boot key, 1-2 seconds to let go, and then charge to see if you can fill in
You can also reset the NVRAM / PRAM: shutdown, and then press the option + command + P + R at the same time, hear 3-4 sound start after the release, into the system, and then charge to see if you can fill in
