The little round thing where the power cord plugs into the laptop has gotten so loose I have to constantly jiggle it to make the connection stay charging. Is there any way to repair? Or what do I look for if I just want to replace that one cord that goes from the laptop to the AC adaptor?
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I'm not sure if you mean (1) your utility power supply is not stable or (2) your router power supply is not stable.
If (1) you can purchase an uninterruptible power supply (UPS). A line interactive unit will probably best.
If (2) the problem may be a loose or damaged power cord. Try jiggling the power cord at various points. Breaks usually occur near plugs but can occur anywhere, especially if you have biting animals around. Sometimes power plug pins can be bent slightly to improve connections. Make sure the power cord is unplugged before trying this!
This could be a series of things. Power supply cord and unit may be bad, or the plug in the back of machine may have come to loose. Power button may be bad if there is lite on. Machine may have gotten to hot and needs to cool down. Or got to hot and cooked the board. So there is several things involved without having the machine in front of me it is serious enough of an issue to warrant taking it in to a shop. Go to a local computer ma and pop shop if you have one they are cheaper than retailers like Bestbuy. John
1/ Find a tape
2/ Wrap the tape around the plug 2 -3 rounds.
3/ Trim off the redundant tape, to make it neat (as in the picture)
4/ Plug in to see if it works
You may add more rounds if it is still loose.
USB connectors are too fragile for the constant in-out service they get. But I have solved the "loose USB" problem, at least for standard Type A. The plug end (its steel case slips into the port end's steel case) is functionally female; it accepts the 4-pin tongue of the port and squeezes it between the 4-pin tongue of the plug end and the steel case of the plug end. So when the plastic tongues wear down, the squeeze isn't tight enough. Solution: take a small vise-grips and make the plug's steel case a little thinner, like a weight on a grilled cheese sandwich you're making. Then when you plug it in, it will resist a bit and feel tighter. And it will now work!
What happens on almost all laptops is that either a: the solder breaks from the constant wiggling of the power plug in the socket causing the socket to become loose and not get a good connection, or b: the power supply module (the little box thing attached to the cord ) goes out, usually because people leave their laptop plugged in all the time, and it was never designed for long term constant use The cord is only meant for charging the battery, or as a temporary power aupply in the event your battery should give out on you.
sounds like the power connector inside the computer finally gave out. Bad news is most likely it is built onto the motherboard which means it has to be replaced. If you are no longer under warranty this might be a little expensive to fix.
I would probably take it into a repair shop and get a quote for a new motherboard for it.
Even though you battery appears A OK, it most probably isn't, all one can do is check the power adapter, by replacement, OR trying another one, from some friendly soul, ... and/or replacing the battery,the same way...
First check the plug on the end of the adapter with a multi-meter, The voltage on the plug should be slightly higher than the voltage that is printed on the label on the bottom of the mains adapter. Also wriggle the wires on the plug to see if the voltage fluctuates, if so it could be a loose/broken wire on the plug.
When you jiggle the plug in the power socket on the laptop and the charge LED flashes and in the right position it charges, this indicates that the power socket is faulty or there is a dry solder joint on the motherboard where this power socket is attached.
To get at the power socket will require dismantling the laptop completely.
When you remove the screws from the bottom of the laptop, take a note where the screws come from as the vary in length.
First easy check is to stick a toothpick into the jack to see if the middle pin is loose. If it's not loose, try another power adapter to check just incase. If you dont have one ask around to borrow a universal one. Dont jiggle and wiggle the plug with the power plugged in if it is loose because i've seen shorts happen.
usually plugs are mounted onto the mainboard. To get to the main board, you'd have to take apart everything because everything attatches to the main board. The case, keyboard, heatsinks, speakers, and so on must come off before you'll be able to see the power jack. With parts and labor, it comes close to a new laptop.
How is your power supply? does it seem like you have to wiggle your cord that connects to computer to make it recieve power?...Many laptops power supply become loose over time form moving the cord around..when it does, the battery has a hard time getting electric power to recharge. Also, you my have other problems with your lithium internal battery that powers your cmos.
Check to see if your power supply is loose and go from there. the power supply is the little hole where you connect the cord to the laptop.