Sprint Galaxy Note 4 mobile hotspot only allows single connection, other issues

With lots of rumors swirling around the next flagship of Samsung, the #GalaxyNote7, it’s easy to sometimes forget the fact there are still many #GalaxyNote4 users out there. We obviously don’t forget though as we continue to consider supporting this device probably well until the new Note 7 becomes well established. So if you want to contact us about your own specific Note 4 problem, do so anytime.

Note 4

Today, we cover these issues below:

  1. Galaxy Note 4 keeps showing overheating warning
  2. Galaxy Note 4 battery drain issue after Marshmallow update
  3. Sprint Galaxy Note 4 mobile hotspot only allows single connection | Galaxy Note 4 random reboot issue
  4. Galaxy Note 4 won’t receive SMS unless a call is made
  5. Galaxy Note 4 Wi-Fi not working properly after flashing

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: Galaxy Note 4 keeps showing overheating warning

Hi. I’m having a problem that developed quite recently (few days ago) and it’s driving me insane. I have a Samsung Galaxy Note 4 and I’ve had it since May 2015 and it works like a charm. But, this sort of warning started popping out on my lock screen and especially when I’m listening to music. It says “warning: your device is overheating and 2 (or 3 or 4 or 5) apps have been closed and you can use telephone and contacts only” and it turns my music out and everything else and it even removes my background on my home screen. The worst thing about this is that my phone is cold. I’d expect it to be warm when something says “overheating”, but it’s not that warm. And that lasts for 3 seconds and then I can use everything but I have to do it all over again and it’s so frustrating I don’t know what to do. Do I need to replace my battery? I wouldn’t want to do that but if it’s the only way…. I guess I’ll have to. Thanks in advance. — Matea

Solution: Hi Matea. Official warning messages on Galaxy devices vary by operating system but they should run along similar lines as this:

Your phone is getting too hot, so it’s taking steps to cool itself down.

You can still use your phone, but you may notice:

-The screen might dim.

-The phone might slow down.

-Charging might pause.

After the phone cools down, performance will automatically go back to normal

We can’t confirm if the message you mention above is legitimate or not but an overheating error is usually accompanied by other symptoms such as

  • slowing down of performance
  • device getting abnormally warm
  • random reboot.

If you don’t experience any other symptoms, there’s a chance that the error is due to a malware or virus. This means that replacing your Note 4’s battery won’t fix it. Instead, you might want to wipe the phone clean via factory reset. Here’s how to do that:

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

Remember, factory reset will erase your personal data so make sure that you create a copy of them before you proceed. Also, factory reset will not prevent viruses or malware from coming back. Since viruses and malware are spread by apps in Android environment, you must be careful with what apps to re-install after a factory reset. If the same error will show after you install some apps, you can bet that one of them must be the cause. You must then isolate which of your apps is the culprit by uninstalling them individually until the issue is eliminated.

Problem #2: Galaxy Note 4 battery drain issue after Marshmallow update

This is about my husband’s Note 4. (It’s out of the 1 year warranty with T-Mobile but still financed, so that’s not an option for replacement. He didn’t keep “Jump” on it. He’s already replaced it with a Galaxy J7.) Here’s the issue: After the Android Marshmallow update from T-Mobile, the device drains the battery with alarming speed. It can go from a full battery to 50% very quickly or from 60% to 30% to nothing within the space of a couple of hours and will shut down because of drained battery. I’ve purchased a replacement Samsung OEM battery for it. Same issue as above.

He’s factory reset the Note 4. Same issue, with old battery or new battery. Same issue as above. What’s happening here and a what could be done to fix it? It seems to be a software or hardware issue after the Marshmallow update… — Kat

Solution: Hi Kat. The simplest yet often overlooked solution for general battery drain issue following an Android update is updating apps. Many Android users usually fail to consider doing this and instead right away blame the new OS to be the culprit. Keep in mind that apps needs to be compatible with every version of operating system if they are to work properly. A game app, for example, may work fine with Lollipop but not properly so with the new Android Marshmallow. Aside from it not working fine, the incompatibility situation can also lead to conflicts with the new operating system leading to other problems, one of them being battery drain. It is thus imperative that you update your apps after an update.

If an app cannot be updated, that may suggest that its developer is still working on an update or yet to release it. That also means that such an app is a potential software timebomb. If your husband likes to install a lot of apps, make sure that all of them are fully compatible with Marshmallow. Incompatibility may be the reason why nothing changed after a factory reset since you simply re-installed the same set of problematic apps.

Problem #3: Sprint Galaxy Note 4 mobile hotspot only allows single connection | Galaxy Note 4 random reboot issue

Hi! I’m facing three major problems in my Sprint unlocked Note 4. I would be very thankful if you could suggest some solutions.

1.) My hotspot only allows one connection at a time. If i want to connect a second device, i have to disconnect the first In its configuration advance options, maximum limit is set to 1 which is unchangeable

2.) My screen has a faded yellow horizontal big strip (2 4-5cm wide) & many hollow squares beneath it visible on a white background (like opening messages or internet browsing, not in dark like watching movies)

3.) And the last, my device shuts down without any warning battery is left (can shutdown anytime when battery goes below 20-15%, sometimes at 17% or sometimes at 6%). And it won’t turn on unless at charger is connected. Please take a look at these issues and explain me as short as you like. Thanks again for your time 🙂 — Yash

Solution: Hi Yash. Let’s address your issue individually.

1.) Hotspot feature is account dependent. This means that you need to call your carrier if you want to share your internet connection to more than 1 user via hotspot.

2.) If yellow strip persists across all boot modes, you must have the phone repaired or replaced due to a screen problem. To check, make sure that you restart the phone in Safe mode, Recovery mode, and Odin mode to see the difference. Here are the steps on how to boot your Note 4 in each of these modes.

Booting a Note 4 in Safe mode

  • Turn off the phone completely.
  • Press and hold the Power key and the Volume Down key.
  • When the phone starts to boot, release the Power key but continue holding the Volume Down key until the phone finished restarting.
  • Safe mode will be display at the lower left corner; you may release the Volume Down key now.

Booting a Note 4 in Recovery mode

  • Turn off the Galaxy Note 4 completely.
  • Press and hold the Volume Up and the Home keys together, then press and hold the Power key.
  • When the Note 4 vibrates, release both the Home and Power keys but continue holding the Volume Up key.
  • When the Android System Recovery shows on the screen, release the Volume Up key.

Booting a Note 4 in Download/Odin mode

  • Turn off the Galaxy Note 4 completely.
  • Press and hold the Volume Down and the Home keys together, then press and hold the Power key.
  • When the Note 4 vibrates, release both the Home and Power keys but continue holding the Volume Down key.
  • Wait for download mode screen to show.

3.) Random reboot issue can be due to one of multiple possible causes that includes bad battery, firmware glitch, malware, erratic third party app, or other malfunctioning hardware component/s. If your Note 4 has been around (that is, you’ve been using it for over a year now), chances are the battery has lost significant capacity to hold a charge. In this case, replacing the current battery is a good troubleshooting and/or solution to your problem. Standard Lithium-based battery like the one on your Note 4 usually loses capacity after between 300-500 charge cycles. If you charge your phone at least once a day on average, now is the time to seriously consider replacing the battery.

If the problem persists even after using a new battery though, consider wiping the phone via factory reset (steps provided above). Doing so will ensure that your phone runs a clean firmware version. You can then observe how the phone behaves for 24 hours without any app to also see if one of your installed apps is to blame.

Should the issue remain, you can assume that you have a bad phone. Call Samsung or any relevant party that can repair or replace your device.

Problem #4: Galaxy Note 4 won’t receive SMS unless a call is made

I just bought a used Note 4 off of Amazon. My carrier is Sprint. After turning it on I drained the battery and it was off for a bit. Like an hour. Before the phone died though, I sent a text message. After turning the phone back on, I realized I received no response even though my friend said that they replied back. I asked for them to send another text and I still received nothing. Wondering what could be wrong with the phone, I made a quick phone call. During my phone call I received all messages that was sent to me while my phone was off. The time received was shown instead of the time the message was sent. Is this a feature I can turn off? Or does Note 4 really not receive messages when the phone is off? I had a Note before this and as soon as I turned my device on after it was off, I’d receive everything. I did not have to make a connecting call in order to receive everything that I missed. — Trey7cap

Solution: Hi Trey7cap. Sending and receiving of SMS is handled by your carrier’s systems. Sometimes, their Message Center may keep SMS until the receiving device is “actively registered” to their network. After some time, the message center will simply delete text messages meant to be delivered to a non-active device. Your call may have simulated a reconnection attempt to your network that’s why SMS started coming in afterwards. If this issue happens again, or if you are expecting an SMS, try to manually change your network settings under Settings>More networks>Mobile networks>Network operators. Make sure that you select another network before reconnecting to your own network again in order for this move to be effective.

Problem #5: Galaxy Note 4 Wi-Fi not working properly after flashing

Hello. Recently i was trying to install a custom firmware on my Note 4 (n910w8). I was trying to install Dr. Ketans S7 Edge ROM onto it.. got it working, but the data and internet wouldn’t work. I found out this is a common problem and people said to use some fix files in the custom recovery. i tried a bunch and they didn’t work. I found one that worked, and got data and wi-fi working on the custom rom, soon after though the wi-fi would say it’s still connected but would not work, as in i could not browse any webpages, download anything, look on the Play Store, use anything that required the internet.

now I’m stuck as to what to do to try and fix this issue. i tried installing another custom rom and ran into the same problem. i flashed stock firmware using ODIN on windows. and i think maybe it still worked on the lower versions of Android but as soon as i got to Lollipop the wi-fi started acting up again. my data works fine, i can still browse if im using data. but my wi-fi will work for a little bit then just stop working. it will work if i turn it off and on again, or if i turn on and off airplane mode.. but this is a huge hassle because it only seems to work for a couple minutes then stops. — David

Solution: Hi David. Fixing a very specific issue like a malfunctioning Wi-Fi feature after flashing may require extensive time and effort for a developer. Since we don’t know what software changes have been made to your device after your installations of different firmware, it’s impossible for us to know for certain where the problem lies. Make sure that you contact the developers of the ROM you used previously to see if they encountered similar issue and if there’s a fix.


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