G750JZ Charging Issues solved but now need new plug/charger (SOLVED) (RMA'ed)

[CoryBee]

So basically I have been having issues with my laptop for a good month and a half now.

It would randomly while playing games for a while stop charging, not a battery issue, clearly either the charging circuit or the charger itself. I was hoping it was the charger but I battled sending anything in as it is my only computer to use abroad.

By the way, it only started happening after playing a very long session of BF4, I could feel the cable get pretty hot and over the month and a half it kept getting worse and worse.

I had no idea what it was as no fiddling with the charger or jack would make it stop working or work when it wasn't. But just today I found if I squeeze the charging cable really tight by the laptop jack it would charge again and I could do my thing. So it is solved in that I found the culprit. My guess is the solder points on the barrel jack got weakened by the heat stress (although come on asus).

I could very well drop 80 bucks on a new charger but since it is just the cable and not the brick itself, I also have a massive electronics work bench when I get back to the states at the end of the month, I would like to find a replacement "tip" "plug part" to the wire.

My question is, where the hell can I find a replacement barrel jack for this laptop? It seems pretty unique, similar maybe to some HP laptops I have worked on.

Any help would be much appreciated.

[JarekCyphus]

I had the exact same problem within a month of having my ASUS G750JH-DB71 back in December of '13. Dealt with ASUS at the suggestion of HMScott back then, and my laptop was sent to them for warranty repair and returned without ever being touched. Their prognosis was a "battery driver" issue, which clearly wasn't the case, since it still wasn't charging (plugged-in, not charging). After a quick breeze through google, I can find evidence everywhere from here and Tom's Hardware to NewEgg and Ebay that the G750 series is complete and utter rubbish in regards to it's power hardware. Even according to local laptop repair shops, the power adapter, jack, and logic circuit are routinely in circulation to the point that the jack often has to be ordered separately (as was the case with my laptop). So when my jack and power adapter both failed, it appeared to also cause a short circuit to my motherboard, with which the local repairshop (a 5-star yelp-rated place, by the way) replaced with a damned G750-JW board. /smh

So they screwed everything up, all because ASUS wouldn't help me out the second time around, when it turned out there was, actually, a problem with the power adapter and jack. When I finally found a local guy who was an actual expert on ASUS hardware, he ripped apart everything from the laptop to the AC adapter brick and was frankly appalled at the QC nightmare that appeared within. Furthermore, he informed me that this was apparently pretty common with a lot of the G750s and G53s, but not with G75s or the new G751s, so far. He hasn't seen a single 751 in his shop, yet, so that's why I junked my laptop and ebayed the functioning parts this week to fund buying one of the G751JYs. If this one bricks after a year, I'm done with ASUS, period. I'd recommend you do the same, after what you're experiencing.

[Prostar_Compute]

Finding an official replacement could be very difficult. At most, you may be able to settle for something of likewise dimensions from another adapter, but I don't claim to know the dimensions of the barrel, nor any good/reliable place to source it.

[CoryBee]

So I decided to say f*** it and cut the cord apart with the HP cord I had from a monitor I sold. Now I am in France at the moment so I was unable to use proper soldering and shrink tube crap and just wrapped the wires together with tape 😄

It didn't work despite being perfect size and checked to make sure it lit an LED, so power was going into it.

But then! It randomly worked after i flipped the laptop over in frustration!! It was charging with the HP plug thingy I connected to my ASUS adapter.....

So, was it the cable? If so then why is it working now (with hp) but not earlier all the times I tried plugging it in?

Is it my laptop charging port? If so then how come the old plug I ripped off for the HP one would only work if I squished the cable in funny ways?

Is it both the plug and the charging port? Or is it something worse like the charging circuit in the laptop? I am worried it is this cause sometimes I feel like it is choosing the times when it will charge and wont. But the HP cable is working non stop no matter how I twist it or wiggle it in the port....but like I said it wasn't charging the laptop when I first put the HP plug in......

Sorry if that is confusing.

Thanks for any and all comments! (ASUUUUUUUS!!!!)

[CoryBee]

So turns out it wasnt the cord at all. It was the laptop itself.

I am back in the states and went to my friends that has the same exact model and put his cord in and nothing......

I took his battery and it started back up.

The thing is it was intermittent, but now it wont power it at all for the past 3 days. SO my charging circuit is blown in the laptop. There is nothing else wrong.

What are my options? Cause I am out of warranty with this as I opened it up.

I was thinking about having the motherboard reflowed. Or is that not the issue with the charging? Cause it started doing this after a bunch of heavy gaming and i felt the cord get hot.

UGGHGHGHGHHGGH

[hmscott]

CoryBee wrote:
So turns out it wasnt the cord at all. It was the laptop itself.
I am back in the states and went to my friends that has the same exact model and put his cord in and nothing......
I took his battery and it started back up.
The thing is it was intermittent, but now it wont power it at all for the past 3 days. SO my charging circuit is blown in the laptop. There is nothing else wrong.
What are my options? Cause I am out of warranty with this as I opened it up.
I was thinking about having the motherboard reflowed. Or is that not the issue with the charging? Cause it started doing this after a bunch of heavy gaming and i felt the cord get hot.
UGGHGHGHGHHGGH

CoryBee, JarekCyphus experience not with standing, the only way to get it repaired correctly is to send it in to Asus - and plenty of people have reported success getting their power charging circuit repaired - all service depots make mistakes, but for the most part Asus makes it right the first time, don't rule them out.

What did you do when you opened it up? As long as you didn't hack the motherboard or do physical damage, you should still get covered by warranty - it's worth a try.

I would explain the power issues, and that you tried your friends power adapter / battery, and have isolated the problem to the charging circuit in your laptop, and nothing else.

We get negative reports from those that have tried other than Asus support to solve these problems, installing wrong motherboards - losing the original Asus OS install and installing raw Windows without proper drivers, etc. They aren't set up to do it 100% as Asus support is, so keep that in mind.

There are lots of good reports for Asus service, so it's worth a shot 🙂

If your first RMA go around doesn't solve the problem, PM cl-albert and let him know what happened so he can bird dog the 2nd time around for you.

https://vip.asus.com <== create a login, register your laptop, file a Technical Inquiry with your debugging details, symptoms, requested repair.

Make sure to pull your personal upgrades, disks, memory, and put the stock HDD in original position. Restore the Asus Windows OS to the original HDD. You can ship it with your stuff installed, but make sure to back it all up to an external drive you keep before sending it.

Please come back and let us know how it works out 🙂

[CoryBee]

Thanks a ton again Scott. I love how helpful you are.

I would send it in to ASUS but I doubt I can hide the fact I soldered something onto the usb. Not sure how closely they will look. But I am pretty sure the warranty is voided now.

I have another option if my Re-Flow doesn't work. I have performed this procedure on over 20 laptops so I know what I am doing. Just upset that a 3k laptop is needing it.

I am hoping this will fix it.

It all started when I was gaming for about 3 hours and all of a sudden it was like I knocked the cord out or something. I didn't pay any attention at first because it remedied itself. But occasionally while gaming it would do it once or twice. hen all the time. And then when I was doing normal web browsing and just last week it started flickering on and off rapidly. Then it just stopped charging, no matter how many times i reset everything.

I am guessing that the solder points on the SMD components in charge of charging and regulating overheated and cracked or something similar. My hopes is that reflow will fix this as reflowing has fixed so many video cards on laptops for me in the past.

I will keep you all posted with pictures of the teardown and process of home reflowing.

Cheers

[CoryBee]

I decided to try to RMA it and see what happens.

Sent it in yesterday, wish my baby luck!

[Fayt666]

CoryBee wrote:
I decided to try to RMA it and see what happens.

Sent it in yesterday, wish my baby luck!

so? any news?

I'm on g750jh and while playing, it starts switching on battery and then back... today i got a bit angry and pushed charger plug hard into laptop. now i have no problems... guess that charging nest is badly attached.
gonna ask a friend to dissamble my notebook and rip off charging unit to solder it as new one.

[CoryBee]

So, just got my laptop back from my RMA.

Great news, they didn't give me **** for modifying it. They either didn't notice or didn't care.

I am extremely happy with how they handled it. I am surprised as I heard so many bad things. But for a 3k laptop I am glad they went above and beyond.

They replaced the mother board, gave me a brand new keyboard & palm rest area and bottom half stating that there was a little bit of dents on the bottom.

So basically, I have a new laptop except for the screen which is the same as before. The shell is new, the motherboard as well. So I am very happy.

I would 100% recommend this process as well.

Only thing I didn't like is that the website for checking RMA status never updated for me. I had to get on live chat for an update. Found out that it was on route for delivery today after getting on chat, while the website said that it was still in repair. Could have missed my package if I didn't chat with ASUS support. Other than that it was pretty painless, took about 10 days altogether since I shipped it. So not so bad.

Thanks all for pointing me in the right direction!