My MSI GT70 gaming laptop will not turn on with either the power cord or battery. No signs of life inside the pc everything lo

[Jim Lawrence]

Thans Jim Lawrence for the quick response. I just happen to have a butane soldering gun, I bought it as a glorified lighter, but I think I can find the tip that transforms it to a soldering gun. You think I have to buy a new power adapter from eBay? Cant I just use this one? I guess a will need a volt meter to figure that out, I think my father has one I can borrow.

But I am still wondering what caused the burn on the board. Is it a short or an overheat? Does anyone have any ideas? I don't want to do the same thing to it. I will attach an image of the power supply, can you let me know if it is the original one or did the guy give me a knock off?

Man looking at this laptop in pieces is both thrilling as well as nerve wrecking, because I have a history of taking stuff apart and not knowing how to put them back together, or having a handful of extra screws or or or... Im a bit nervous but, I followed the diagram to the T and will reverse my steps one by one. I also have different bowls for screws so I can go backward and not use the wrong screws for the wrong socket.

Image:
1- https/www.dropbox.com/s/b302qzhh5z5gm4x/20141227_132709.jpg?dl=0
2- https/www.dropbox.com/s/b8rvdwyhrylt5yj/20141227_132720.jpg?dl=0
3- https/www.dropbox.com/s/b8rvdwyhrylt5yj/20141227_132720.jpg?dl=0
4- https/www.dropbox.com/s/rfute7ubrzwpng6/20141227_132905.jpg?dl=0
5- https/www.dropbox.com/s/ckscsqqz66uj8vw/20141227_133646.jpg?dl=0

This is exactly what happened to my computer just not as severe. I first cut one side of the metal at the mother board and bent the outside cover up so I could access the rest of the pins. I carefully cut away the rest of the power adapter and left as much of the pins exposed as I could.

I found the solder to be a hgh temperature solder and it too alot of heat and time to melt enough to desolder. I had to use a solder gun on both sides of the board at the same time. I have a 140 watt weller and I also have a small butane powered gun and it took over a minute on each solder joint. Once each joint melted I pushed the leftover pin out as far as I could using the solder gun tip then grasped it with a small needle nose and pulled it the rest of the way out.

Not having any solder wick or a vacuum desolder tool I then used a 1.16th drill bit in my dremel tool to clean out the holes in the PC board. The power adapters are readily available on Ebay and Amazon. There are many available so make sure you pick the proper one.

Putting back on was much easier than removing. I made sure it fit flat against the circuit board and then resoldered. Still took some heat to get the solder to flow properly. I hope this helps. My computer has been running fine since and that was about 2 months ago.

I would get some desolder wick and a fine pointed solder tip. I forgot to mention that I had to use some magnifying glasses as well. It makes the job much easier.

I have a similar problem and am looking for a solution.

My problem is that I bought my MSI GT70 off of Craigslist and I checked everything is working fine. I get home, battery gets low, plug it in the wall and it dosent charge. I'm like $hit!

So Diagnostics are...
1-Plug in the wall charger and battery, turn on...nothing
2-Remove the battery, keep the wall charger.... nothing
3-Remove the wall charger use only battery, it turns on, for 3 min because the battery is empty.

So my conclusion is something is wrong with the wall charger or loose adapter or something.

I disassemble the laptop according to the following:

1-A picture illustration with detailed descriptions, very helpful to keep track of screws etc

2- Video step by step disassembly when the pictures aren't descriptive enough

I came to find the power adapter where it accepts the electricity from the wall to the motherboard fried a pin on the motherboard, one of the adapters pins. I hope I can simply swap out the adapter and call it a day or even beret just solder it back on like Jim Lawrence did. I have a simple soldering iron and I think I can get it done. But I want to know what caused the problem so I don't break the laptop after I hopefully fix it. Maybe someone connected the wrong power adapter and gave it too many volts? Maybe it simply overheated (I doubt it)?

I hope that I don't have to change the motherboard because a new one will cost me $450 on eBay.
Can I get some help? Advice? Anything! This is the first time I disassemble a laptop to the core. I am tech savvy but definitely a rookie.


https/www.dropbox.com/s/d93zut2s7i3geh2/5.jpg?dl=0


https/www.dropbox.com/s/41z0j8a23rg1spe/4.jpg?dl=0



https/www.dropbox.com/s/bmsb148l7189ddz/3.jpg?dl=0


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https/www.dropbox.com/s/zfp8cr1c13h895c/1.jpg?dl=0

 

[Jim Lawrence]

It appears to me that the center pin breaks at the circuit board from plugging and unplugging the power cable. It wiggles the center pin and caused it to fatigue and break. This causes a high resistance connection which creates the heat. That is my theory. It could be that they have a manufacturing problem that causes a cold solder joint creating high resistance and heat as well.
It appears that this is a common problem with MSI as the new power receptacle was easy to find and readily available. I have some HP laptops and have never had an issue with the power plug. It is unlikely that your power supply adapter is bad but I checked mine during my troubleshooting process.

Doing a good resolder job will be critical to your repair success. As I said it took plenty of heat over time to get the old solder to melt. Either it is very high temp solder or the circuit board is thick and they have lots of copper in it to sink the heat. If you have a solder sucker or some solder wick it would be helpful but you can get it easily and cheaply on Amazon along with your power connector.

A set of magnifying glasses are very helpful as you will be doing some small work and it makes it much easier to see. My job is about a month old now and still working well with no problems. I bought mine used as you did on craigslist and someone had been in it before me as some of the screws were missing. I bought some and put one in every hole just to make me feel better. Some of the plastic snap together stuff made me a little nervous but I got used to it after about the 3rd time through. Reassembly takes a little time making sure you get the ribbon cables inserted properly and locked down as well as all the wire routing but it all worked out. I took some pictures for reference as well.

Hey good luck and just take your time. Get all your stuff in order , get a small wire cutter and needle nose. You might want to buy a 1/16 drill bit as well. It helped with me when I cleaned out the holes to insert the new connector. I assume you have a vise as I held the MB so I could use both hands. I wrapped the MB in a towel to prevent damage. A bright headlamp helped me as well.

 

[abdat60]

Awsome! The internet has everything, the art is in finding the correct term to search for. The golden term for my case is "Power Jack"

Here is the power jack I found

http/www.ebay.com/itm/AC-DC-POWER-JACK-SOCKET-CONNECTOR-for-MSI-GT60-MS16F3-GT70-GT780R-GX660R-GX680-/400701111044?pt=Laptop_Adapters_Chargers&hash=item5d4ba5bb04

And here is a video I found

https/www.youtube.com/watch?v=eCiSvYYpCZA

I was a bit discouraged by other forums that the power jack damage may have lead to other components being damaged on my motherboard, I will rather try a $10 fix rather than trowing out the motherboard. I did drop the motherboard so if the power jack didn't damage it the drop sure as hell did...lol. I will wait for the part to come in and update.

 

[Chewy3]

Awsome! The internet has everything, the art is in finding the correct term to search for. The golden term for my case is "Power Jack"

Here is the power jack I found

http/www.ebay.com/itm/AC-DC-POWER-JACK-SOCKET-CONNECTOR-for-MSI-GT60-MS16F3-GT70-GT780R-GX660R-GX680-/400701111044?pt=Laptop_Adapters_Chargers&hash=item5d4ba5bb04

And here is a video I found

https/www.youtube.com/watch?v=eCiSvYYpCZA

I was a bit discouraged by other forums that the power jack damage may have lead to other components being damaged on my motherboard, I will rather try a $10 fix rather than trowing out the motherboard. I did drop the motherboard so if the power jack didn't damage it the drop sure as hell did...lol. I will wait for the part to come in and update.

Did it work? I had some scorching on mine from the pin on the power jack but my brother added some solder and it worked for about a month but I've got the same issue again.

 

[abdat60]

Man, I wish I thought of only putting some solder on it...I ended up solering the hell out of it to remove it, then replaced the p[ower jack with a new one. Same problem, it would short on the board, ended up sending it to a motherboard fixer on ebay....still waiting, I will be suprised if he can fix it after I went to town on it.

 

[samg86]

My GT70 just shut down 6 months ago and I'd pretty much given up on it - I saw this thread and bought a power connector from here: http/www.aliexpress.com/item/NEW-For-MSI-GT60-MS16F3-GT70-LAPTOP-AC-DC-Power-Jack-PORT-Socket-Connector-PLUG/32269320681.

I took the laptop apart using this video: http/www.youtube.com/watch?v=bxVzseg1RRc

The power connector had no visible damage, but I figured I'd try to replace it anyway as I'm not in warranty and figured it was the motherboard if this wasn't the problem.

I have a 40W soldering iron but it wasn't hot enough to make much difference to the solder - i pretty much had to rip the component off the board using pliers, before re-soldering the replacement component. It was pretty messy, but unbelievably it worked and I have my laptop back. Thanks for the help and good luck fixing yours.