Hello,
--- Background info ---
For several years now I've been dealing with a charging/power issue with my laptop. I've already found a solution to my problem, and I think it was the correct thing to do. However, I attempted to perform it myself.
In performing the repair, de-soldering a surface-mount MOSFET (8 legs), I didn’t practice enough on other less significant electronic devices with components similar to the one I was changing nor did I know of a proper technique. Along with this I became somewhat impatient (I had just gotten a new soldering iron set, a fairly inexpensive one, that had various tips that I didn't fully learn to use) and, pretty dumbly, pulled on the MOSFET in hopes that it would separate from the board; with the solder cold (the tip I was using was too thin to retain enough heat to melt the solder efficiently, and I didn't want take the time to change it). I know, I know… it was a completely stupid idea and I knew it was a stupid idea around the time I tried. The risks just didn’t click in my mind at the moment for some reason. The MOSFET was fried and crumbling apart so I thought I would just try to pull it out.
The result of pulling on the part was that it did come up and separate from the board but it brought something with it. I had pulled up a copper track from the motherboard; fortunately only one. The other seven were directly connected to each other; like a tiny copper plate. I think I pulled up the track connected to the MOSFET's gate pin; which went straight into a via from what I was told.
Long story short, I somehow got my computer to work mostly like normal again. But the initial charging issue I had is still persisting ever since I (tried to) performed the repair. Also, I can’t purchase a new motherboard and whatever else is needed for a successful installation of one. The actual problem I’m having with the charging is almost irrelevant to the question I have now. I have a new idea for how I can perform a lasting repair.
--- Key info ---
I’ve tried many times to connect to whatever small amount of copper many possibly still remain with no luck. My question is: could I use a small-gauge wire and solder it to the MOSFET’s gate pin and run the wire to the source for the gate pin on the motherboard, and, are there any alternative parts of the laptop that I could use safely? Also, does anyone have any other suggestions?
I have information on the part that I’m using, pages from motherboard schematics (it should be the area that I’m concerned with), and a physical picture of the area (it’s not my image but there is a box focusing on the part).
Here is the part I’m using: https://www.digikey.com/product-detail/en/fairchild-semiconductor/FDS6681Z/FDS6681ZCT-ND/1626210
I couldn't get the images to show so here are the direct links:
http://i850.photobucket.com/albums/ab62/luchvk/Y580%20Repair/original01_zpsxxvnbmga.jpg
http://i850.photobucket.com/albums/ab62/luchvk/Y580%20Repair/2016-08-25%2018_22_13-Greenshot%20Area%20Focus_zpsmdlfwnyw.jpg
http://i850.photobucket.com/albums/ab62/luchvk/Y580%20Repair/2016-08-25%2018_22_13-Greenshot_zpskyxzlcqd.jpg
http://i850.photobucket.com/albums/ab62/luchvk/Y580%20Repair/original03_zpsyc9ysmry.jpg
Here is a link to the page that I got the repair information from (for anyone interested): https://forums.lenovo.com/t5/Lenovo-P-Y-and-Z-series/Solution-for-laptop-cannot-detect-AC-adapter-after-performing/td-p/1641892
---
Thank you for reading and considering my issue. I hope we can come to a lasting solution for this but I want to thank you ahead of time even I can’t fix it.
--- Background info ---
For several years now I've been dealing with a charging/power issue with my laptop. I've already found a solution to my problem, and I think it was the correct thing to do. However, I attempted to perform it myself.
In performing the repair, de-soldering a surface-mount MOSFET (8 legs), I didn’t practice enough on other less significant electronic devices with components similar to the one I was changing nor did I know of a proper technique. Along with this I became somewhat impatient (I had just gotten a new soldering iron set, a fairly inexpensive one, that had various tips that I didn't fully learn to use) and, pretty dumbly, pulled on the MOSFET in hopes that it would separate from the board; with the solder cold (the tip I was using was too thin to retain enough heat to melt the solder efficiently, and I didn't want take the time to change it). I know, I know… it was a completely stupid idea and I knew it was a stupid idea around the time I tried. The risks just didn’t click in my mind at the moment for some reason. The MOSFET was fried and crumbling apart so I thought I would just try to pull it out.
The result of pulling on the part was that it did come up and separate from the board but it brought something with it. I had pulled up a copper track from the motherboard; fortunately only one. The other seven were directly connected to each other; like a tiny copper plate. I think I pulled up the track connected to the MOSFET's gate pin; which went straight into a via from what I was told.
Long story short, I somehow got my computer to work mostly like normal again. But the initial charging issue I had is still persisting ever since I (tried to) performed the repair. Also, I can’t purchase a new motherboard and whatever else is needed for a successful installation of one. The actual problem I’m having with the charging is almost irrelevant to the question I have now. I have a new idea for how I can perform a lasting repair.
--- Key info ---
I’ve tried many times to connect to whatever small amount of copper many possibly still remain with no luck. My question is: could I use a small-gauge wire and solder it to the MOSFET’s gate pin and run the wire to the source for the gate pin on the motherboard, and, are there any alternative parts of the laptop that I could use safely? Also, does anyone have any other suggestions?
I have information on the part that I’m using, pages from motherboard schematics (it should be the area that I’m concerned with), and a physical picture of the area (it’s not my image but there is a box focusing on the part).
Here is the part I’m using: https://www.digikey.com/product-detail/en/fairchild-semiconductor/FDS6681Z/FDS6681ZCT-ND/1626210
I couldn't get the images to show so here are the direct links:
http://i850.photobucket.com/albums/ab62/luchvk/Y580%20Repair/original01_zpsxxvnbmga.jpg
http://i850.photobucket.com/albums/ab62/luchvk/Y580%20Repair/2016-08-25%2018_22_13-Greenshot%20Area%20Focus_zpsmdlfwnyw.jpg
http://i850.photobucket.com/albums/ab62/luchvk/Y580%20Repair/2016-08-25%2018_22_13-Greenshot_zpskyxzlcqd.jpg
http://i850.photobucket.com/albums/ab62/luchvk/Y580%20Repair/original03_zpsyc9ysmry.jpg
Here is a link to the page that I got the repair information from (for anyone interested): https://forums.lenovo.com/t5/Lenovo-P-Y-and-Z-series/Solution-for-laptop-cannot-detect-AC-adapter-after-performing/td-p/1641892
---
Thank you for reading and considering my issue. I hope we can come to a lasting solution for this but I want to thank you ahead of time even I can’t fix it.
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