Solved Samsung Galaxy Note 8 Only Charges When Screen Is Off

The #Samsung #Galaxy #Note8 is one of the best productivity mobile devices released last year which caters to the power user. This phone sports a huge 6.3 inch Super AMOLED display which works with finger touch input as well as with a stylus called an S Pen.  Under the hood is a Snapdragon 835 / Exynos 8895 processor combined with 6GB of RAM allowing the phone to run any app smoothly. The device also has a dual rear camera system which takes excellent quality photos. Although this is a solid performing phone there are instances when certain issues can occur which we will be addressing today. In this latest installment of our troubleshooting series we will tackle the Galaxy Note 8 only charges when screen is off issue and other related problems.

If you own a Samsung Galaxy Note 8  or any other Android device for that matter then feel free to contact us using this form. We will be more than happy to assist you with any concern that you may have with your device. This is a free service we are offering with no strings attached. We however ask that when you do contact us try to be as detailed as possible so that an accurate assessment can be made and the correct solution can be given.  

If you would like to browse the previous parts in this series then check out this link.  

Note 8 Only Charges When Screen Is Off

Problem: Note 8 only charges when screen is off, as in black (or when shut down). When screen is on it loses charge quickly, though it loses charge % much more slowly when plugged in to charger. It does not gain more positive charge. This occurs with 3 different chargers at different locations. Tried holding Volume Down & Power simultaneously. No change after reboot. Thank you, and thank you for providing these services!

Solution: What you should do right now is to first clean the charging port of the phone using a can of compressed air. Make sure that any dirt or debris stuck in this port gets removed. Once this is done try using different charging cords and wall chargers to charge the phone. Does the issue still occur? If it does then the next step is to check if the problem is caused by a software glitch. To do this you will need to backup your phone data then do a factory reset. Once the reset is complete try to check if the issue still occurs. If it does then this could already be caused by either a faulty power IC or battery. The best thing that you can do right now is to bring the phone to a service center and have it checked.

Note 8 Does Not Fast Charge

Problem: Hi! I have had a Samsung Galaxy Note 8 for 6 months, and my carrier is Straight Talk. The fast charging just stopped working. I’ve been researching solutions, but before I do anything else, I noticed that when I have the fast charging button set to the ‘on’ position, it goes off when I plug in the charger. I haven’t seen any post anywhere that says anything about that happening. I don’t know if it’s relevant or not, but it seems to me that it might be. I can’t take out the battery on this phone, so I can’t do a soft reset. If you could please help me, and let me know if the fast charging button going off is the issue, and how to fix it, I’d really appreciate it. Thank you!

Solution: The first thing that you need to do in this case is to isolate the charger since this might be what’s causing the problem. Clean the charging port of your phone using a can of compressed air then use a different charging cord and adaptive fast charging charger to charge the phone. You can also use other types of wall chargers as long as it has an output of at least 2.0A. In case the issue still persists then the next step is to check if the problem is caused by a software glitch by following the steps listed below.

  • Start the phone in Safe Mode then charge the phone in this mode. Make sure to check that the phone fast charging setting is switched on. If the problem does not occur in this mode then an app you downloaded might be the culprit. Find out what app this is and uninstall it.
  • Wipe the cache partition of the phone from the recovery mode.
  • Backup your phone data then do a factory reset.

If the above steps fails to fix the problem then you will need to bring the phone to a service center and have it checked as this could already be caused by a faulty hardware component.

Note 8 Only Charges From Computer USB Port

Problem: My Note 8 has stopped charging in many situations. First, the fast charger (I have multiple fast chargers) would sometimes stop charging unless I flipped the USB-C to one orientation against my phone charging port (yes, I know USB-C is supposed to be the same whether it’s plugged in one way or another). Then, the fast chargers sometimes wouldn’t work period no matter the orientation, or sometimes would only work after being plugged in for several minutes. Then the fast chargers stopped working period. Then my normal charger (e.g. USB-C to USB-A to normal phone power source) stopped charging. Now, the only time my phone charges is if I plug it into my desktop/laptop. This was a linear progression: First everything worked, then fast charging wouldn’t work but normal charging did, then normal charging wouldn’t work but slow charging did… I’ve tried many different fast chargers. I’ve used the same USB cable, and tried other Note 8’s on the same cable. So, I’ve done all the obvious troubleshooting to make sure my cable works, my fast charger works, my phone connection works, etc. Perhaps the biggest evidence that there’s just something wrong with my phone is: I take a USB-C to USB-A cable connected to a power source and my phone won’t charge, then I take that same cable and plug it into a desktop and my phone charges. This proves that the cable isn’t fault and my phone charging point isn’t faulty.Then, I took a USB-C to USB-C to fast charger and connected to my phone and it wouldn’t charge. I tried this on another phone and that phone charged. This proves that there’s nothing wrong with the charger.

Solution: It looks like the problem is caused by an issue with the charging port of the phone. One of the pins of the port might be damaged. You can try cleaning this port using a can of compressed air then check if the issue still occurs. If it does then I recommend that you have this checked at a service center. There’s a possibility that the charging port of your phone will have to be replaced.

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Chad Buenaflor

Chad has been in the tech industry since 2000. He has a degree in Electronics Engineering and is interested in the hardware and software side of technology. Initially working for a Japanese semiconductor company as a Test Engineer for nearly 10 years, he then pursued his passion for internet technology by working for the support team of Time Warner Cable then finally joining TheDroidGuy as one of their troubleshooting and tech writers. On his free time he plays his favorite games on his PC, Xbox Series X, and Android phone. Contact me at Email

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