How to fix Samsung Galaxy S7 that’s not charging [Troubleshooting Guide]

  • Understand why your #Samsung Galaxy S7 (#GalaxyS7) isn’t charging and learn how to troubleshoot your device.
  • Step-by-step instructions are provided in the article so that it would be easier for you to fix the problem.


Every smartphone owner knows how important battery is. If service providers could only offer power like credits or minutes, for sure many people would pay for it just for the assurance that their devices will remain powered on wherever they go without plugging it.

Unfortunately, that kind of service doesn’t exist for now so owners are stuck to using conventional power adapters, newly marketed wireless chargers and power banks for people who are always on the go.

But what would you do if one day your Galaxy S7 refuses to charge when plugged in?

In this post, I will tackle this problem once again. I’ll walk you through in troubleshooting your Galaxy S7 to be able to determine the reason why it isn’t charging. From there, we may be able to find a solution for it.

Before we go any further, for those who have other issues, make sure you visit our troubleshooting page as we’ve already addressed a lot of problems with this device since its release. Odds are we already answered a similar problem and that there might already be a solution available for it.

If you need more assistance, you can always reach us through our Android issues questionnaire. Just provide us with necessary information about your phone and the problem and we’ll be the ones to do the research and find a solution for it. Of course, the more information you provide, the easier it will be for us to fix the problem, so please be detailed in describing the issue.

Troubleshooting Instructions

Every case is different and there are several factors that need to be considered to know what really is the problem with why the handset isn’t charging. Let’s try to rule out every possibility starting from minor ones.

Step 1: Reboot your phone

The first time the phone refuses to charge, don’t do anything except a reboot. It’s always possible for both firmware and hardware to glitch sometimes and may result to this problem.

We really can’t pinpoint the issue if it’s the hardware that glitches but most of the time if the problem is with the firmware, this issue results from freezes and/or being unresponsive.

Step 2: Plug in the charger and hold the phone at various angles

This will give us an insight whether it’s about loose connections or not. If the device charges when held at a certain angle, then the USB charging port may be loose and you can try to verify that by trying to gently move the end of the cable that’s inserted into the port. If there’s a play however small it is, then it’s loose but it doesn’t mean it’s the USB port’s fault. It might also be a problem with the cable.

The point of this step is to know if the phone would charge if there’s good contact between the receptors and more often, we really can’t do anything about it if it’s really the case. So, I suggest you immediately send the phone in for checkup and repair.

Step 3: Inspect the power adapter and it’s port

The power adapter or the charging unit is where the current that flows through the cable to the circuit of your phone to the battery is coming from. Needless to say, it is the first step of the charging process so if there’s a problem with the charger, naturally the electric current won’t flow and the phone won’t charge.

For this step, you need your sense of smell and sight. If something is burnt inside the charger, you can surely smell it. You also need to physically check the port on the charger for lint, debris and corrosion. If one of these is present, that might be the reason why your phone can’t charge. You may clean the port using a Q tip or something that could fit into the hole.

Step 4: Verify the USB cable isn’t broken

The cable is the only thing that bridges the charger and your phone. Without it, charging is impossible. So, inspect it to see if it has some kind of a break somewhere. Of course, you only need to see the obvious like if there’s actually unusual physical defect because we really can’t see the inside of it. The easiest way to do it is by running your fingers from end to end. If you can feel something unusual, then it’s time you bought a new cable or use a different one.

Step 5: Verify that your phone charges wirelessly

I’m not telling you to buy a wireless charger if it’s not possible. If you can borrow from someone, then that would be a great help. I understand this is not really a solution but it will give us an idea whether phone can still charge or not. If it can, then at this point, we can rest assured that the device is fine as well as its battery.

This, of course, means that you have to buy a new charger, the wired one.

Step 6: If the problem started after an update, do the master reset

The firmware plays a great role in the charging process so if the problem started after you updated your device, then there’s a possibility it’s a firmware issue. Backup your data if there’s still enough battery left and then do the master rest:

  1. Backup your data.
  2. Remove your Google account.
  3. Disengage screen lock.
  4. Turn off your Samsung Galaxy S7.
  5. Press and then hold the Home and Volume UP keys, then press and hold the Power key. NOTE: It doesn’t matter how long you press and hold the Home and Volume Up keys, it won’t affect the phone but by the time you press and hold the Power key, that’s when the phone starts to respond.
  6. When the Samsung Galaxy S7 shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
  7. When the Android logo shows, you may release both keys and leave the phone be for about 30 to 60 seconds. NOTE: The “Installing system update” message may show on the screen for several seconds before displaying the Android system recovery menu. This is just the first phase of the entire process.
  8. Using the Volume Down key, navigate through the options and highlight ‘wipe data / factory reset.’
  9. Once highlighted, you may press the Power key to select it.
  10. Now highlight the option ‘Yes — delete all user data’ using the Volume Down key and press the Power button to select it.
  11. Wait until your phone is finished doing the Master Reset. Once completed, highlight ‘Reboot system now’ and press the Power key.
  12. The phone will now reboot longer than usual.

Step 7: If all else fails, send the device for repair

If you reach this part, then you have already done everything you can to try to fix the problem on your own. So, it’s time you let someone with appropriate skill set to handle the problem for you. You need a technician to do further tests, troubleshooting and repairs. In case the phone is still a couple of weeks old, negotiate a replacement with your provider.


We are always open to your problems, questions and suggestions, so feel free to contact us by filling up this form. This is a free service we offer and we won’t charge you a penny for it. But please note that we receive hundreds of emails every day and it’s impossible for us to respond to every single one of them. But rest assured we read every message we receive. For those whom we’ve helped, please spread the word by sharing our posts to your friends or by simply liking our Facebook and Google+ page or follow us on Twitter.

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Harold Hisona

Harold has been in the tech industry since 2008 when he started out as a tech support for companies like Time Warner, Comcast and Tracfone. He’s been troubleshooting phones when the smartphone industry started booming. During his tenure as a tech support, he’s already been writing for various tech blogs and doing some freelance SEO. In 2012, he joined a small team of bloggers to write for The Droid Guy, and he has been with the company ever since. Today, he doesn’t only write tutorials and troubleshooting pieces but also shoots and edits videos for The Droid Guy channel while trading stocks on the side. Contact me at Email

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