Tips on how to save Note 4 battery power, fix for slow charging issue, other issues

There’s been an uptick in reported #GalaxyNote4 recently so we’re trying to publish them as soon as possible. This post brings you 5 more Note 4 issues and their solutions. For those new to our blog, don’t forget to also visit our main Galaxy Note 4 troubleshooting page.

Here are the topics we cover for you today:

  1. Tips on how to save Note 4 battery power
  2. Galaxy Note 4 totally unresponsive and won’t turn on
  3. Some apps won’t work when using Galaxy Note 4 mobile data
  4. Galaxy Note 4 randomly shuts down when battery level is at 10% or 20%
  5. Galaxy Note 4 charging very slowly

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, or you can install our free app from Google Play Store.

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.

Problem #1: Tips on how to save Note 4 battery power

Hi. First, thanks for helping me. Now, my problem. About a month or so ago, my phone went dark. i tried to restart it, and got a message saying  something about a battery boot failure. I tried swapping batteries, and got the splash screen and it shut off. I tried a few times to restart it and got another battery boot failure message, then nothing. I finally gave up, left my phone alone for couple of weeks, then tried another battery. It started, but the batteries didn’t last long; they drain rapidly, so I have to swap them out multiple times a day. A lot of times, the phone drains the batteries instantly. It takes 2 to 4 batteries before the phone will start again. I can’t plug in via the USB port because it rusted out (I live in snow country, so there’s a lot of humidity in the winter). So, I use a Qi pad to charge the phone, though it doesn’t always charge, and I use a separate charger to charge individual batteries.

Sometimes, the phone instantly drains batteries; sometimes, the phone will turn on if I remove it and put it back in again. I am a retired disabled senior, these phones are quite a financial burden to have to replace after only a year or so for anyone, but, especially for someone like me. I have been trying to locate a suitable replacement that will serve all my needs, and still be affordable, but, I have as yet to succeed. (Besides, I just lost $450 when I hired and prepaid a handyman for work and he simply left and refused to answer my calls, so I really can’t afford to buy a new phone). I rely on my phone for most of my browsing and other things, because I lost my computers in a fire last year, which took almost everything I owned. I have as yet been able to replace or substitute everything, so I rely on my phone quite heavily. I also would prefer to not have to buy a new phone, especially since I just had the screen replaced last summer. I also had a memory/boot failure last spring, and lost all my data, because I had to do a hard reset.

My son also had a problem with the internal memory failing, and had to buy a new phone. Apparently, many people have had both of these problems with the Note 4, but, I like the features and am now accustomed to using this phone and would just prefer to stay with the Samsung Notes. I would be very grateful if you could help me.

Incidentally, I tried the solution your site gave to remove the battery, then hold down the power button for 1 minute. It took several attempts before it would stay on past the splash screen, so I assume that the power problem still exists. Thank you for your time and assistance. — Tomiko

Solution: Hi Tomiko. We may not always say this clearly in our posts but we are here to help users with software problems. If you haven’t noticed, most of our suggestions are limited to providing solutions to problems that we think have software problems only. If we think that bad hardware is to blame, we always tell users to send their device to a service center or have it replaced. That’s because hardware problems need complicated tests that can only be done by someone with the right skills and training. Such tests also needs specialized kits that most average Android users don’t have. That said, we will continue this practice with your case. If nothing will change after you’ve exhausted all software solutions, there’s nothing more that we can tell  you. For example, although we think you will be able to improve the situation by doing some software hacks, you should still submit the phone for a hardware check up if you want to get to the bottom of the problem. And speaking of software hacks, below are the things that you can do.

Perform a factory reset. Your main issue is battery drain so you want to make sure that you reset all software settings back to their default, working state. You want to ensure that the phone’s software environment is a clean slate before you do other stuff. As its name suggests, factory reset will erase everything from your phone so make sure that you back all your data before proceeding. And here are the steps on how to factory reset your Note 4:

  1. Turn off the Galaxy Note 4 completely.
  2. Press and hold the Volume Up and the Home keys together, then press and hold the Power key.
  3. When the Note 4 vibrates, release both the Home and Power keys but continue holding the Volume Up key.
  4. When the Android System Recovery shows on the screen, release the Volume Up key.
  5. Using the Volume Down key, highlight ‘wipe data / factory reset’ and press the Power key to select it.
  6. Now highlight ‘Yes — delete all user data’ using the Volume Down key and press the Power key to begin the reset.
  7. When the master reset is complete, highlight ‘Reboot system now’ and hit the Power key.
  8. The Note 4 will restart but it will be longer than usual. When it reaches the Home screen, then begin your setup.

Re-install necessary apps only. Just like in everyday life in general, the more activities you do, the faster your energy drains. The same is true when it comes to the software environment of a digital device so the next good thing to do once you’ve factory reset your phone is to ensure that you install as few apps as possible. The more apps and services there are, the more complex computing and processing becomes. Other apps are also designed to have associated services running in the background, even if you’ve already closed the main app itself. Thus, the more apps you install the more items there are to consider when dealing with battery drain issue. Think hard about what apps you need, not want. This may be difficult as it may take away the enjoyment of having such an amazing phone but keep in mind that you’re trying to deal with a battery drain problem here. You are not one of those lucky users who seem to be having a normal experience with their gadget. We know that apps are the lifeblood of our smartphones today but if you want to get down to the problem, you must make some sacrifices.

Now, how, you may ask, will you know which apps are necessary? Well, that depends on your usage habits. Necessity in this context is subjective and it’s for you to decide. If, for example, you must be in constant communication with your relatives via one of social networking apps like Facebook, Twitter, Snapchat, etc., you need to install one such apps. Texting and voice calling are, of course, given apps so they should be automatically installed. The general rule that we would like to give you here is to think hard what apps you use everyday. If you have apps that you haven’t used in 2 weeks, they may not be that necessary for you at all. The goal is to have as few apps as possible to minimize bugs that helps drain battery power faster.

Also, you want to stick to official apps if possible. If you are fond of online shopping for example, make sure that you only use apps from companies that you trust. Official apps tend to receive regular patches to address known bugs and are optimized to work with all Android versions. Apps created by lesser known or inexperienced developers don’t receive regular updates and may not be optimized, increasing their chances of creating a conflict with an operating system resulting to bugs and issues such as battery drain. Needless to say, you want to ensure that you only install quality apps on your phone.

If you want to know more on how to avoid installing bad apps, don’t limit yourself to our blog. There are many other blogs out there that can give you information on what apps to install to help you in this case. For example, you may discover that Greenify app is actually a good app to install first.

Turn off master sync. Another good practice that you want to start doing in this case is to turn off master or automatic syncing feature of the phone. If enabled, master sync allows apps to regularly communicate with their remote servers to see if there are updates available, provided your phone is constantly connected to the internet either via wifi or mobile data. While not necessarily bad, master sync feature can be one of the major factors why your battery tends to give you less power most of the time. Some of the usual apps that can impact battery consumption are e-commerce, social networking, and even email apps like eBay, Amazon, Facebook, Twitter, to mention a few. If you can’t live without these apps, make sure that you configure the settings of each so they only receive updates if you manually tell them to. Sync options may vary from app to app but what you want to do is to basically prevent apps from syncing on their own.

To turn off master sync, simply pull down the status bar and look for the Sync icon. Tap it to turn it off.

Disable wifi or mobile data when not in use. Another thing that many smartphone users overlook is leaving their device constantly connected to the internet. Make sure that you only allow your phone to connect to the internet if you need it. Otherwise, turn wifi and mobile data off to minimize the chance of some apps from automatically downloading contents.

If you are in an area with spotty mobile data connection, turning off mobile data service can also help prevent battery drain. Any attempt of your phone to connect to your carrier’s network takes processing power so you are actually helping the phone conserve precious battery juice by simply preventing it from contacting the network.

Dim the screen. If you’re used to having the AMOLED screen at full blast all the time, we say you start considering making another sacrifice. Make sure that you set screen brightness to the lowest comfortable setting to conserve as much energy as possible. We’re not saying that you sacrifice your eye’s health in this one but to just try to find a certain brightness level that you can work with for a long time.

Use Power saving mode. If you want to drastically control battery consumption, you can make use of either Power Saving Mode or Ultra Power Saving Mode. For a brief explanation on how to do any of them, visit this official Samsung page.

Problem #2: Galaxy Note 4 totally unresponsive and won’t turn on

Hi. Basically a few weeks ago I got my phone out my pocket and my Note 4 was very laggy, crashing and restarting. I performed a soft reset and I also factory reset it. Unfortunately this did not resolve the issue. I searched on the internet and this seemed a bit of a common problem. From research I downloaded an app called “wake lock” which keeps your phone from going in to deep sleep/hibernation mode and keeps the CPU running. After downloading and activating it worked like new! However from lack of battery the phone had died and i couldn’t get it back on. I managed to get into download mode and safe mode a couple of times when this happened and I managed to get the phone to boot up again! But now the my phone died again and this time it’s completely unresponsive. Won’t charge (it did before when it was on), can’t get into download mode or safe mode. The only thing that shows me the phone isn’t completely dead is that when I plug it into my laptop… my laptop makes a noise that it recognizes a device has been plugged in. but that’s it. I’m a bit stuck here. I’ve not rooted my phone either. Oh I also bought a new battery and put that in to see if that was the problem. Thanks. — Dan

Solution: Hi Dan. Frankly, you don’t have many options in this one and the only thing that you can try is to see if the phone boots to other modes (safe mode, download mode, recovery mode). If the phone won’t boot to any of them, bad hardware must be to blame. Hardware malfunction in this case can vary from a simply damaged power button to some unknown motherboard issue. If a new battery won’t fix it, have the phone repaired or replaced.

For reference, these are the steps on how to boot to alternate modes:

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 S7 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. Using the Volume Down key, navigate through the options and highlight ‘wipe cache partition.’
  6. 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 S7 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 S7’ 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.

Problem #3: Some apps won’t work when using Galaxy Note 4 mobile data

Dear I am having trouble with my Galaxy Note 4, specifically with my internet connectivity. I can use all applications through wifi but can’t do using the operator internet provider. Once I’m using the phone internet, some of the applications is working normally (Instagram, Facebook, Google Maps,.. ) whereas the others not working like (Google page, Linkedin, Youtube, Gmail apps…). Could you please assist as i have connected with the operator several times and there is no problem since I am Hotspotting the internet to my laptop to send you this message. Thanks and appreciate your assistance. Regards. — Moe

Solution: Hi Moe. If you’re positive that mobile data is working on your phone, the problem may be caused by a bad system cache. To fix the problem, follow these steps:

  1. Turn off the Galaxy Note 4 completely.
  2. Press and hold the Volume Up and the Home keys together, then press and hold the Power key.
  3. When the Note 4 vibrates, release both the Home and Power keys but continue holding the Volume Up key.
  4. When the Android System Recovery shows on the screen, release the Volume Up key.
  5. Using the Volume Down key, highlight the option ‘wipe cache partition’ and press the Power key to select it.
  6. When the wiping of the cache partition is finished, highlight ‘Reboot system now’ and hit the power key.

If the problem remains after refreshing the system cache, the next good thing to do is to ensure that you wipe the cache and data of each problematic app. Here’s how to do it:

  1. Open the Settings menu either through your notification shade (drop-down) or through the Settings app in your app drawer.
  2. Navigate down to “Apps”. This may be renamed to something like Applications or Application Manager in OEM skinned versions of Android 6.0.
  3. Once in there, click on an application.
  4. You’ll now see a list of stuff that gives you information about the app, including Storage, Permissions, Memory Use, and more. These are all clickable items. You’ll want to click on Storage.
  5. You should now clearly see the Clear Data and Clear Cache buttons for the application.

Problem #4: Galaxy Note 4 randomly shuts down when battery level is at 10% or 20%

My Samsung Galaxy Note 4 is 8 month old and still under warranty. I’m having random shut down between 20% to 10% the phone. Sometimes it goes into a bootloop but most of the times it just turns off by itself when i connect my phone to the charger. There is always some juice in it but the phone will not turn on unless i charge it. The problem started after October security patch OTA update. I’m not really sure if it’s a software issue bug or it’s hardware problem * or the battery itself* My device model is SM-N910G snapdragon variant not rooted stock 6.0.1 MM with the latest Dec security patch update. — Amar

Solution: Hi Amar. A few things that you can try to get to the bottom of the issue includes the following:

  1. Wiping the cache partition (steps provided above).
  2. Battery recalibration (steps provided below).
  3. Observing the phone in safe mode to see if there’s a difference when no third party apps are running.
  4. Factory reset (steps provided above).
  5. Using a different battery.
  6. Send the phone for repair or replacement.

As you can see, the first four in the list are meant to check if a software glitch is to blame. If they won’t help you fix the problem, the last two should be done.

Problem #5: Galaxy Note 4 charging very slowly

Hi. My phone shows that its charging, however, the amount doesn’t always increase. Sometimes it stays on the same amount for 20-30 minutes. It charges but super slowly and it seems like the connection is lose because it doesn’t always stay “charging.” I had my phone plugged in last night before bed and it was at 13%. when I woke up in the middle of the night, around 4 am, it was at 14%. Does that sound like it could be a cord issue? I’m using my best cord. It doesn’t look like anything is wrong internally in the port but I’m not sure exactly what it’s supposed to look like. — Jessica

Solution: Hi Jessica. Slow charging issue like what you’re experiencing right now can be a product of a malfunctioning hardware, or by simply having too many apps and background services running. To know which is which, you can do a few things like the ones below:

  1. Boot the phone to safe mode while charging. Having too many apps running while charging may be enough to make charging rate too slow. What that means is that the charging rate is only barely enough to replenish lost power due to apps. To fix that, you want to prevent some apps (third party apps and services) from working by booting the phone to safe mode. This is a remedy and not a solution so if you want to permanently fix the issue, you should uninstall apps. Refer to the steps above on how to boot to safe mode.
  2. Uninstall apps and disable bloatware. As mentioned above, you should consider removing apps if the issue continues. You would also want to remove carrier-, Samsung, or Google-provided apps you don’t use. These apps are known as bloatwares and as the name suggests, they are there to provide often redundant or unnecessary functions. Removing them may improve battery performance.
  3. Recalibrate the battery. Refer to our suggestions above.
  4. Do a factory reset.
  5. Use another battery. If your Note 4 has been around (over a year old), there’s a possibility that the battery is now nearing its end of life. In other words, it may be losing significant capacity to hold a charge so make sure that you try another one.
  6. General hardware failure may be to blame. The charging port may have been damaged or some motherboard issue may be causing the problem. Make sure to have the hardware checked.


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