Galaxy S7 charges very slow and keeps overheating, other issues

s7 edge

After a couple of months since the most recent Android Galaxy S iteration was released, we’ve noticed that more and more users are reporting issues similar to previous Galaxy S phones. We hope that this post today will help address some of the common #GalaxyS7 problems some members of our community encounters.

Below are the topics discussed in this material today:

  1. Wireless charging problem on Galaxy S7 Edge
  2. Galaxy S7 charges very slow and keeps overheating
  3. Galaxy S7 won’t connect to 3G network
  4. Galaxy S7 screen won’t turn on after it was exposed to water and sunlight
  5. Galaxy S7 keyboard automatic space between words and emojis

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: Wireless charging problem on Galaxy S7 Edge

I am having a problem with the wireless charging on my Samsung Galaxy S7 Edge phone in my 2016 Cadillac Escalade. I have taken my Escalade to the dealer who updated the software for the vehicle and they checked on the wireless charging mat, they test drove it and it worked fine with their phone but I can’t get it to work with mine.

Is there anything you can tell me about this issue?  I am thinking of taking the phone back to ATT where I purchased it. — Brian

Solution: Hi Brian. You have to give us more information about what’s going on than simply tell us you have a problem with wireless charging. A more detailed description of the situation as well as giving us specific symptoms like error messages would be helpful. We don’t know where to start if all we know is that you have a problem. Giving us a series of significant incidents that may have potentially affected the wireless charger and phone is also great.

Just like any charging problems, your type of issue may be caused by software or hardware trouble. If you updated the software of your phone or your car prior to noticing the issue, make sure to mention that as well.

We’ll update this post once you’ve provided more details.

Problem #2: Galaxy S7 charges very slow and keeps overheating

Hi. I am having a very hard time charging my phone. The original charger got a short in the cord so i replaced it. Phone was working well until it started getting really hot when i use it or charge it for a long period. 

I installed the DU battery saver app hoping it will help. Eventually i realized it didn’t and i uninstall.

Just after, the phone will not state if its charging or not. Just the gray battery with the loading circle while charging off and vibration every now and then. When it’s on however it began charging at a slow rate but no indication of the lightning bolt stating its charging. I tried the universal charger but it’s the same slow charging.

Now i have been charging it for hours and it only goes as far as 9% and with use while charging it drops to 7%. If i remove the charger in less than 3 minutes i have a completely dead phone.

What can i do now?

Any suggestions? Should i wipe the phone?

Best Regards. — Meela

Solution: Hi Meela. There can be a number of factors that you have to look into if you want to get down to the bottom of the problem.

Use official Samsung chargers and cables only

First, you must keep in mind that poor quality charging cable or charger can lead to overheating or even damage the battery or phone. Whether it’s giving insufficient or too much amperage, a bad charger or cable can result to unhealthy consequence for any electronic device. , Saving yourself a few bucks by using third party chargers and cables may not be that bad as long as you’re lucky. Unbranded chargers and USB cables may damage a device in the long run especially if their output is different from your own device. Although you can easily check the output of a third party charger on the device itself, the printed values may not entirely be true. The general rule of thumb when using a third party charger is to ensure that the voltage and the amperage match, though most chargers nowadays have the same voltage of 5.0. To spare yourself from technical discussions, simply make sure to use official Samsung chargers or the one that came with the box ensure that a correct charge is being delivered.

Now a bad charger can either affect the battery directly or other components. If using a Samsung charger at this time won’t change anything and overheating and slow charging continues, you can safely assume that you have a hardware problem.

Check your apps

In some rare cases, third party apps or services can cause an Android device to overheat by demanding too much processing resources even when a user is not actively using it. This also drains the battery faster prompting a user to often charge the battery several times every day. If you have a lot of apps installed, considered booting the phone in safe mode.

While this mode is enabled, third party apps will be prevented from loading so it’s a good way to know if one of your apps is the culprit. Here’s how it’s done:

  • Press and hold the Power key.
  • As soon as you can see the ‘Samsung Galaxy S7 EDGE’ on the screen, release the Power key and immediately hold the Volume Down key.
  • Continue holding the Volume Down button until the device finishes rebooting.
  • You may release it when you can see ‘Safe mode’ in the bottom left corner of the screen.

If the phone charges normally and no overheating occurs, make sure to uninstall third party applications until the issue is gone.

Consider virus infection

While not pervasive, malware infection can sometimes manifest itself in decreased battery life and overheating. Depending on the malware, it may or may not simply sit and wait but can also ask the CPU to run in the background all the time. Collection of data and personal information can happen in slowly overtime. Other form of malware may be designed to stay in the device in order monitor browsing habits, spread more malware in a network, tap into data streams, to mention a few. All these activities can drain the battery and make the CPU to work all the time, resulting to overheating and power drain.

The thing is, there’s no pinpoint way to know for sure if an Android device is infected. Older forms of malware may be easily detectable if you install an antivirus that already identified it in the past. Newer viruses or malware meanwhile can stay undetected by most AV apps for some time. If you suspect that your phone has a virus, consider doing a factory reset.

For reference, here are the steps on how to do it:

  • Turn off your Samsung Galaxy S7 Edge.
  • Press and then hold the Home and Volume UP keys, then press and hold the Power key.
  • When the Samsung Galaxy S7 Edge shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
  • When the Android logo shows, you may release both keys and leave the phone be for about 30 to 60 seconds.
  • Using the Volume Down key, navigate through the options and highlight ‘wipe data / factory reset.’
  • Once highlighted, you may press the Power key to select it.
  • Now highlight the option ‘Yes — delete all user data’ using the Volume Down key and press the Power button to select it.
  • Wait until your phone is finished doing the Master Reset. Once completed, highlight ‘Reboot system now’ and press the Power key.
  • The phone will now reboot longer than usual.

Make sure that you observe your phone for 24 hours in the least without installing any app to see the difference. If nothing changes and the phone continues to overheat, call Samsung to have your device checked. It may need a battery replacement, or at worse, a motherboard may need swapping.

Problem #3: Galaxy S7 won’t connect to 3G network

I noticed last week that my phone did not receive 3G network even though the phone is set to 3G preferred. I tried three different SIM cards and still my phone will never receive 3G network while my brother who uses one of the SIM cards receives 3G network constantly on his phone.

I have restored factory settings already and yet, that didn’t resolve the issue. I even tried registering on 3G manually by searching for networks from the settings menu and I keep getting the response “failed to connect to network try again later”.

I am frustrated already cause I just got the phone about a month ago and you can imagine the pain of having to use 2G network to surf the web and download. What could be wrong with the phone? Please help. — Adeyanju

Solution: Hi Adeyanju. If a factory reset does not resolve the issue, we doubt if there’s anything that you can do on your end right now to fix it. The best thing that you can do is to call your wireless carrier (if they provided the phone to you), or Samsung so you can get the unit replaced. There may be a hardware failure on the device causing it to not register to a 3G network.

Problem #4: Galaxy S7 screen won’t turn on after it was exposed to water and sunlight

Good day! My Samsung Galaxy S7 screen has turned blank. i can make calls and all but i don’t see anything on the screen. the thing is we were at the beach and i put it in a waterproof pouch but i think the pouch wasn’t closed well so there’s a few drops of water that got in. not much have got into the pouch since i didn’t use it for long. it just that there was a little moist in the pouch so i got it out of the pouch and left it with all our stuff while we swim. but before i left for the water, i checked if it still works, and it still did so i wiped it and left it under the shade.

after i think less than 30 minutes i went to check on the phone and the shade has moved so my phone has been exposed to the sun for i don’t know how long. probably half the time i was in the water or less.

so i picked it up and it was hot and when i unlocked it the lock/power button doesn’t work and as well as the recent key and the back key and since the battery was only 15% and it won’t turn off or lock, the battery was empty after a few minutes.

thinking that it was fine and was just empty, i charged it but it didn’t turn on or anything. i tried charging it on my power bank and my power bank worked but the screen is still black. i left it charging the whole night while the aircon was on so that it doesn’t turn hot. when i woke up the screen was still black but if i plug the charger it makes the sound that it’s charging.

so i tried to call it and it rang, but the screen is still black. can i ask what do you think is wrong and what i should do? it would be very much appreciated if you could answer. Thank you so much for your time.. — Dominica

Solution: Hi Dominica. Whether the cause is direct heat or water, the phone appears to have a screen problem. Both heat and water can damage a device or the screen so the best course of action that you can do right now is to have the checked by Samsung so proper diagnostics can be conducted. That the phone rings or appear to show indications that it still powers on is a strong indication that the problem may only be limited to the screen assembly. Replacing this part may resolve the issue.

Problem #5: Galaxy S7 keyboard automatic space between words and emojis

Recently, a lady I met was trying to help me out by changing something (I forget what now) on my phone. When she was finished I couldn’t do anything. I played with it for hours until I got almost everything back up and running. When I text I used to get an automatic space after each character I typed, but now I have to insert a space manually. I don’t know how to fix that.

Before, I used to be able to add color emoji’s or emoticons (don’t know what I’m supposed to call them) to my text messages right from the keyboard I use for texting, but now all I have are a couple of black and white items.

I believe that’s all I have problems with right now and I would really appreciate it if you could help me restore these items.

Thanks  very much. — Helen

Solution: Hi Helen. If you’re using the native Samsung keyboard when typing, make sure that you enable the feature called Auto spacing under keyboard options so that spaces can be inserted automatically between words.

The same option can be enabled if you’re using Swype keyboard.

If you are using a third party keyboard though, try to play around with its settings and check if a similar option exists.

To enable emojis or emoticons, first you have to make sure that the native keyboard is updated. You will normally receive a notification from Samsung if one of your apps, keyboard included, needs an update. If you think your keyboard is up-to-date, you can then tap on the microphone icon, then the smiley face on the keyboard. Doing so will pull up a range of emojis that you can use.

A third party keyboard may have a slightly different way to access its settings. Almost all modern keyboard for Android supports emojis so we don’t think you’ll have a problem finding it.


Engage with us

If you are one of the users who encounters a problem with your device, let us know. We offer solutions for Android-related problems for free so if you have an issue with your Android device, simply fill in the short questionnaire in this link and we will try to publish our answers in the next posts. We cannot guarantee a quick response so if your issue is time sensitive, please find another way to resolve your problem. 

If you find this post helpful, please help us by spreading the word to your friends. TheDroidGuy has social network presence as well so you may want to interact with our community in our Facebook and Google+ pages.