Samsung Note 9 (128GB) charging very slowly

[Android Central Question]

My Samsung Note 9, bought last November has stopped 'fast charging' using the fast charger that came with it. This happened about 3 months ago. I cannot use the charger which came with it. Whenever I plug it in, the ‘fast charging’ notification shows up, then after 1 second, the phone does not charge at all using the Samsung Charger.
I am now just using my computer, powerbank, or sometimes even a non-fast charging charger to charge my Note 9…my concern is that my Note 9 takes about 6-8 hours to charge now. Yes, I know it’s not fast-charging, but my previous phones, and even my iPhone didn’t take more than 2.5 hours to charge on a non-fast charger!
I have checked my settings to confirm fast-charger IS enabled. I can confirm I can fast charge using the chargers at work. I have rebooted my phone a few times and reset the settings a few times.
Has anyone has an this issue where it takes 6-8 hours on a non-fast charger? Yes, I might ‘solve’ this by buying a new fast charger as the one I have might be defective. But this still won’t solve the fact that it takes 6-8 hours to charge on a non-fast charger – I won’t always have a fast charger with me – say when I’m travelling or in a car. Is it really normal for the Note 9 to take 6-8 hours to fully charge?
Appreciate some of your feedback please. I will have to factory reset as a last resort – but from reading online, I don’t think this will ‘fix’ it.
Model number: SM-N960F
One UI 1.0
Android version 9
Kernel version 4.9.59-15792590
Build number PPR1.180610.011.N960FXXS2CSDJ

 

[Casey Cheung]

Hmm, interesting. Now, I'm curious. How long should it take to charge a nearly dead Samsung phone to 100% on fast charge (via cable). I never allow my phone to go that low so I don't know.

 

[lenpro]

I believe it takes around 2-2.5 hours

 

[mustang7757]

I believe it takes around 2-2.5 hours

No , I always charge at 5 percent it takes 1.5 sometimes quicker

 

[mustang7757]

I believe it takes around 2-2.5 hours

But take it in for warranty, you tried all suggestions .

 

[lenpro]

Ok. Another update. Went back to the shop where I got it from. Manager has had a look and found that my USB-c port is full of dirt, cotton and other materials. He suggested that I'll grab a thin object like a toothpick to remove the particles blocking it. I went home, grabbed a thin object and gently removed a lot of the particles. I can now see the silver plate at the bottom, whereas before I couldn't. I tried charging it...but it still charges super slow!

I could see that there are still a LITTLE bit of dust particles left, but surely a little dust particle blocking the silver plate at the bottom wouldn't affect charging? Surely Samsung expects that dust WILL end up there and a little dust wouldn't completely through charging out of whack?

Anyway, I'll try attempt number 2 and see if I can fully remove everything 'blocking' the port. Hopefully, that will fix it.

 

[lenpro]

Update: Also found out that my phone cannot be recognized by my PC as I was trying to back up my files. Sounds like a charging port issue. Have sent it out back to Samsung for warranty repair. Hope it goes well and they don't factory reset my phone

 

[mustang7757]

Update: Also found out that my phone cannot be recognized by my PC as I was trying to back up my files. Sounds like a charging port issue. Have sent it out back to Samsung for warranty repair. Hope it goes well and they don't factory reset my phone

Hope all goes well.

 

[lenpro]

Alright. Samsung advised that the motherboard is faulty and it needs to be replaced. It will also mean a factory reset is required. Before I get back to Samsung, am I able to request them a new unit? I mean I'm okay with repairing a charging port, but a motherboard? C'mon. This failed in just 4-5 months since I purchased it and sadly I did not pick it up soon enough.

 

[mustang7757]

Alright. Samsung advised that the motherboard is faulty and it needs to be replaced. It will also mean a factory reset is required. Before I get back to Samsung, am I able to request them a new unit? I mean I'm okay with repairing a charging port, but a motherboard? C'mon. This failed in just 4-5 months since I purchased it and sadly I did not pick it up soon enough.

No they have the right to fix or give refurbished but that's totally up to them , I think motherboard comes with the USBC port together now.

 

[lenpro]

Well that's just great. My first Samsung phone and I just drew the short stick.

 

[lenpro]

Will a replaced motherboard affect performance and phone lifespan etc? Or should I sell it when I get it back and just get a new phone?

 

[lenpro]

After a few days, I finally got my Samsung Note 9 yesterday. I can confirm the battery is now charging quickly. It's at 27% now and it says it will take 1 hour and 45 minutes to charge.

Sad news is...Samsung has slightly damaged my phone chassis. It's not huge obvious dents, but I definitely notice the dings and marks. My phone color is black and for some of the dings and body scratches, I could see the 'silver' underneath the black color. Just a bit upset on the fact that I'm taking care of my phone and they send it back to me with those marks.

What can I do now? Do I email the shop where I got it from or contact Samsung directly?

 

[mustang7757]

After a few days, I finally got my Samsung Note 9 yesterday. I can confirm the battery is now charging quickly. It's at 27% now and it says it will take 1 hour and 45 minutes to charge.

Sad news is...Samsung has slightly damaged my phone chassis. It's not huge obvious dents, but I definitely notice the dings and marks. My phone color is black and for some of the dings and body scratches, I could see the 'silver' underneath the black color. Just a bit upset on the fact that I'm taking care of my phone and they send it back to me with those marks.

What can I do now? Do I email the shop where I got it from or contact Samsung directly?

That's a good question, and always worried about when having repairs done, try the shop first but you should of inspected the phone right there and said something.

 

[lenpro]

I've emailed Samsung as recommended by the manager, and wait for their reply.

Well, thanks everyone for helping. We have at least addressed the mystery of the Note 9 charging slowly. It's because the Motherboard had an issue and needed replacing.

Special thanks to @mustang7757 for your sound advise and expert wisdom

 

[mustang7757]

I've emailed Samsung as recommended by the manager, and wait for their reply.

Well, thanks everyone for helping. We have at least addressed the mystery of the Note 9 charging slowly. It's because the Motherboard had an issue and needed replacing.

Special thanks to @mustang7757 for your sound advise and expert wisdom

Your welcome, hope they do something for you , keep us posted