Galaxy Note 5 fails to boot up, won’t turn on, keeps saying USB connected, other issues

The #GalaxyNote5 remains one of the most used smartphone in the world today. With millions of units still being in active circulation around the world, it’s no wonder a lot of people continue to contact us for all sorts of issues regarding this device. In this article, we bring you 4 more Note 5 power- and charging issues. We hope you’ll find our suggestions helpful.

If you are looking for solutions to your own #Android issue, you can contact us by using the link provided at the bottom of this page.

When describing your issue, please be as detailed as possible so we can easily pinpoint a relevant solution. If you can, kindly include the exact error messages you are getting to give us an idea where to start. If you have already tried some troubleshooting steps before emailing us, make sure to mention them so we can skip them in our answers.

Below are specific topics we’re bringing for you today:

Problem 1: Galaxy Note 5 won’t charge, keeps saying USB connected, charging port not working

First showed “USB connected” when there was no connection, attempted trouble shoot, didn’t work. found phone refused charge, further trouble shooting (all off your site) no success, factory reset didn’t work, however device can take charge for 1-2 seconds at time before nothing (USB connected to wall, 3rd party cable. chimes that has power, shows bolt then nothing- no sign of charging).  Phone purchased @ time of release. —   Smith

Solution: Hi Smith. All the symptoms you mention here (USB connected message when device is not connected by USB at all, won’t charge, intermittent sound indicating phone is charging) are consistent with a broken USB charging port. Try to check the charging port and see if there’s any dirt or foreign debris that you can see. You can then try to clean it by blowing compressed air into the port. If the port appears clean and the pins seem to be normal (not bent or damaged), your only option is to send the phone in for repair. An issue like this can’t be fixed by doing some software troubleshooting in the device.

Problem 2: Galaxy Note 5 battery is swollen

Good day to you The Droid Guy. I recently bought a Galaxy Note 5 which I now believe to be a refurbished version. I’ve had it for 5 months now and recently bought an “adaptive fast charging” travel adapter. I’ve noticed that my battery has become swollen and my screen doesn’t seem to be flat anymore. When I put my phone face flat it doesn’t sit flush with the surface entirely especially towards the home key side. Could any serious damage have been done to the phone? And how do i tell if a battery is original because I am thinking of replacing the battery. — Hopewell Nhari

Solution: Hi Hopewell. Swelling is one of the telltale sign of a damaged battery. The bigger the swelling becomes, the more likely that the motherboard or some components bend, potentially causing a major hardware damage. If there’s one thing a smartphone lacks, it’s space inside. Every component in the motherboard is designed to only occupy a certain space. Battery swelling can rob precious real estate inside, causing other components to be pushed or bent to dangerous level. If you can, you should immediately remove the defective battery.

If you’re planning on replacing the battery in your Note 5 yourself, you should do some research where to source a good one. Unlike the Note 4 battery where you can just buy one from a Samsung store, the Note 5’s battery is officially not being sold by Samsung. You’ll either have to use a battery of another Note 5, or find a reputable supplier. Unfortunately, we don’t do hardware repair so we have little to nothing when it comes to sourcing replacement parts for Galaxy devices.

The best alternative for you right now is to hunt for a broken Note 5 with non-battery-related issue so you can cannibalize its battery. Try asking some shops if they can spare an original Note 5 battery for you. Alternatively, you can try sourcing your battery from sites like eBay, Amazon, etc.

Problem 3: Galaxy Note 5 fails to boot up, won’t turn on

My Note 5 had been powering itself off, running slowly and freezing. This was several months ago. I took it to AT&T where they wiped it. I also got a new battery. It seemed fine for a bit. A week or so ago it started restarting over and over while charging and then it started when off the charger. Often I would find it non-responsive and has to do a soft reboot to bring it back on line. I noticed that it died whenever I attempted to charge it. I would reboot and it would restart. I replaced the battery again a couple days ago, but it hasn’t improved the function. It continued to die while plugged in, but never charged. Now it is completely dead. Thoughts? — Zonia Wynns

Solution: Hi Zonia. There are a few things that you can try to fix an issue like this. The causes can range from a simple app bug, software glitch, malfunctioning charger, to other unknown hardware issue. Be sure to do the things below:

Try a different, known working charger and USB cable

Sometimes, a phone that fails to charge has a simple reason — bad charger. If you haven’t checked on this possibility yet, be sure to do it as the first troubleshooting step. Any official USB cable and charger will do but if possible, try using an original Galaxy Note 5 charger.

Check the Power button

Your Note 5 may actually be charging but still fails to power on because an important component — the power button — may be malfunctioning. If the button appears loose in the case, or if the phone only attempts to boot up after applying more pressure on the button, there’s a chance that it may be defective. You should send the phone in so it can be replaced.

See if phone boots to alternate modes

In some cases, Android can fail to boot up although the phone is not totally dead. In this case, you must try to check if your Note 5 can load to other boot modes so you can do follow up troubleshooting. Here are the steps:

Boot in Recovery mode:

  1. Charge the phone for at least 30 minutes.
  2. Press and then hold the Home and Volume UP keys, then press and hold the Power key.
  3. When the Samsung Galaxy logo shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
  4. When the Android logo shows, you may release both keys and leave the phone be for about 30 to 60 seconds.
  5. You can either wipe the cache partition or do a factory reset when in this mode.

Boot in Download Mode:

  1. Charge the phone for at least 30 minutes.
  2. Press and then hold the Home and Volume DOWN keys, then press and hold the Power key.
  3. When the Samsung Galaxy logo shows on the screen, release the Power key but continue holding the Home and Volume DOWN keys.
  4. Wait until the Download screen appears.
  5. If you can boot the phone in download mode but not in other modes, that means that your only way out may be to flash a stock or custom firmware.
  6. Use Google to look for a guide on how to do it.

Boot in safe mode:

  1. Charge the phone for at least 30 minutes.
  2. Press and hold the Power button.
  3. Once the Samsung Galaxy logo appears, release the Power key and immediately press and hold the Volume Down button.
  4. Continue holding the button until the phone finishes rebooting.
  5. Once you see the text “Safe mode” at the bottom left corner of the screen, release the Volume Down button.
  6. The only difference of safe mode from normal mode is that the former prevents third party apps from running. If you can boot the phone in safe mode but not in normal mode, uninstall all apps until the issue (that prevents you from booting normally) is eliminated.

Send the phone in

Should the phone remain dead after doing all the steps above, the best thing that you can do is to let a technician take a look at the hardware. Unless you have training and experience fixing Galaxy devices, do-it-yourself repair is really not recommended.

Problem 4: Galaxy Note 5 slow performance issue, keeps freezing

Dear sir/Madam. I am using a Note 5. Recently it had became very laggy and screen frozen every 5 seconds. I used it and sometimes it does not even response, I had to press the power button and bring it back to swipe key screen, but it still lag. I had tried the method in turning it to safe mode and target the app, and I had wiped cache partition, and even restore to factory setting, but the lag remain. Seek your advice, if not I really have to change my phone. Thank you. — Adam

Solution: Hi Adam. Lag or slow performance issue is one of the perennial issues among Android phones. The thing is, it’s really hard to pinpoint where the problem lies because it can both be caused by both software and hardware. Usually, older hardware or phone models manifest slow performance issue as they age because the internal storage device can become inefficient over time.

In some cases, even a relatively young phone model like the Note 5 can still suffer from slow performance issue because of other issues including app incompatibility, firmware coding problems, or hardware malfunction.

But since you’ve already tried the basic software solutions such as factory reset before contacting us, it’s safe to assume that the cause for your particular problem is hardware in nature. If the phone continued to lag after a factory reset and when there were no apps installed, that’s an indication that bad hardware is to blame. Just like what we tell other users above, you should contact Samsung or send the phone in so repair or replacement can be done.