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How to troubleshoot Samsung Galaxy S7 Edge that’s not charging & other power-related issues

There are already a lot of complaints about #Samsung Galaxy S7 Edge (#GalaxyS7Edge) units that aren’t charging so we’ll look into this problem. It just a few weeks since the device was released but we’re already seeing serious issues like this. Problems like this, however, may have also resulted from owner’s negligence. The purpose of this post is to troubleshoot the problem but there’s no guaranteed fix especially if the problem is with the hardware.

Galaxy-S7-Edge-underwater-charging

At the later part of this post, I will answer some of the power-related questions asked by our readers. Read on to know if one of them is similar to your problem and learn how to troubleshoot or fix it.

Before going any further though, if you have other concerns, try to visit our Galaxy S7 Edge troubleshooting page as we’ve already answered several issues with the phone. Try to use the recommend solutions or troubleshooting procedures. You may also contact us directly by completing this questionnaire.

Galaxy S7 Edge Not Charging Issue

First off, your phone is still new and it might still be within the replacement period. So, if you don’t want to go through all the hassles of troubleshooting, then I suggest you go to your provider and have it replaced. However, for owners who want to do something about the problem before sending it away for repair or replacement, try to follow the steps below:

  1. Make sure you use the original power adapter and USB cable because if not, that might be the reason why your phone isn’t charging at all. Remember, a battery as huge as the S7 Edge’s need a powerful charger and considering it’s capable of fast-charging, you need something that’s specifically designed for such feature.
  2. Check both ends of the cable for corrosion, debris and/or lint. Anything that goes between the receptors in the phone and the pins in the cable may interfere with the normal charging process. Be also on the lookout for bent or crooked pins. If you can find one, try straightening it out.
  3. Inspect the port on the power adapter. Try to see if there is corrosion of some kind or bent pins. You also need to check the USB or utility port on your phone for the same thing.
  4. Assuming there is nothing that blocks or corrodes the pins, try turning off your phone and plug the charger in to see how the phone reacts. If it shows the usual charging symbol or lights up the LED indicator, then the charger is ok as well as the cable. However, if the phone doesn’t respond, then it might be an issue with the adapter or the cable and to rule out these possibilities, you need to use a different charger. If the phone charges fine with other chargers, then you need to buy a new charger kit, otherwise, continue troubleshooting.
  5. If the phone won’t respond when plugged in, it might be a simple system crash issue. Perform the forced reboot procedure by pressing and holding both the Volume Down and Power keys together for 7 to 10 seconds. The phone either reboots or the screen flickers for short time. You can then try charging your device and see if it responds this time.
  6. Boot your phone in recovery mode if it still didn’t respond when you plugged it in. In Android System Recovery, all necessary hardware are powered up but the Android GUI isn’t loaded. So, if it’s not a hardware issue, your phone should be able to boot up in recovery mode: press and hold the Home, Volume Up and Power keys together.
  7. If the phone won’t boot up in recovery, it’s time to have it replaced because it might be a hardware problem. However, if it started fine, then try wiping the cache partition. If that didn’t make any difference, then try doing the reset still through recovery mode. In case the phone remained off (and didn’t even flicker), there’s a chance the battery was all drained and since the device won’t charge, seek help from a technician.

Samsung Galaxy S7 Edge Power Issues

Here are some of the issue you may encounter if you own an S7 Edge:

Q:My phone just blacked out all of the sudden but I know it isn’t the battery because it was around 73% when it died. Now, it just won’t respond when I try to turn it on. This is the first problem I encountered with the Galaxy S7 Edge and honestly, it worries me. What if it won’t go away? Would I be using a defective phone until my contract with my provider expires?”

A: It might be just a simple system crash. Try pressing and holding down the Volume Down and Power keys together for 7 seconds and the phone will reboot. Things like this happen all the time but if it happens frequently on your device, then try doing the master reset. If it comes back then you need to negotiate a replacement with your carrier or provider.

  1. Turn off your Samsung Galaxy S7 Edge.
  2. 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.

  1. When the Samsung Galaxy S7 Edge shows on the screen, release the Power key but continue holding the Home and Volume Up keys.
  2. 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.

  1. Using the Volume Down key, navigate through the options and highlight ‘wipe data / factory reset.’
  2. Once highlighted, you may press the Power key to select it.
  3. Now highlight the option ‘Yes — delete all user data’ using the Volume Down key and press the Power button to select it.
  4. Wait until your phone is finished doing the Master Reset. Once completed, highlight ‘Reboot system now’ and press the Power key.
  5. The phone will now reboot longer than usual.

Q:I’ve had my Samsung Galaxy S7 Edge for about 10 days. It’s been working time until today. My phone was at 44% charge, I spent 20 minutes getting ready for bed, and I came back to a completely black, unresponsive screen! It’s been charging for 10 minutes and the screen is still black! Please help!

A: Just like the previous problem, it might be just a crash so perform the Forced Reboot procedure to restart your phone. If the problem comes back, try doing the master reset and/or contact your service provider for possible replacement.

Q:Phone keeps blacking out for some reason and when I reboot it, it takes forever to come back on. I still can use it though but the thing is it’s an expensive premium phone with a powerful hardware and advanced firmware, why is it doing this?

A: I don’t know how frequent the blacking out sessions are but if it’s interfering with the normal use of your device, I suggest you try wiping the cache partition first, then do the master reset if the problem remained. Lastly, you still have the option to have it replaced, so you may contact your provider about it.

  1. Turn off your Samsung Galaxy S7 Edge.
  2. Press and then hold the Home and Volume UP keys, then press and hold the Power key.
  3. When the Samsung Galaxy S7 Edge 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. Once highlighted, you may press the Power key to select it.
  7. Now highlight the option ‘Yes’ using the Volume Down key and press the Power button to select it.
  8. Wait until your phone is finished doing the Master Reset. Once completed, highlight ‘Reboot system now’ and press the Power key.
  9. The phone will now reboot longer than usual.

Q:Hi Guys. Very good article: Samsung Galaxy S7 Power Saving modes and how to extend its battery life. The only (very serious) problem is that you’re not telling us how to disable Ultra Power Saving Mode; i.e. how to get the phone’s original functionality back – without doing a factory settings or total reset. I couldn’t find any information online on how to do it for the S7 (although several solutions for other models). Please tell us how as part of your tutorial?

A: When in Ultra power saving mode, there’s a few icons you can actually use plus the More option at the upper-right corner of the screen. Just tap that and you have the option to turn it off. Don’t worry, I already added the steps in that same article. Thanks for letting us know!

Q:Just wondering, I was told never leave the Samsung Galaxy Edge 7 plug in to a charge over night or after it reaches 100%. I often plug my phone into a charge before I got to sleep and wake to a fully charged phone in the morning, what’s the correct way, if there is one, thanks.

A: Well, you can actually just continue doing what you’re doing because leaving the phone plugged in to the charger even if the battery already reached 100%. Many have been worrying about “overcharging” but it’s not going to happen to your new Galaxy S7 Edge. Gone were the days wherein batteries get damaged when left charging and there were even cases when they explode. Todays technology, however, is a lot better than technologies ten years ago. Your phone is smart enough to stop the charging process even if it’s still plugged in once it reaches 100%. So, yes, you can still charge your phone before you sleep and wake up with a fully-charged battery.

Q:Hi! Just today, my Galaxy S7 Edge started to restart without any reason. I mean I didn’t do anything with it that could have led to this problem but it just started rebooting randomly. What has happened to it and how do I fix it?

A: Well, it’s difficult for us to pinpoint exactly what the problem is so you need to troubleshoot it. Here’s what I suggest you do:

  1. First of all, boot your device in safe mode so all third-party apps will be temporarily disabled. Use your phone normally at this state to find out if it still reboots on its own.
  2. If the phone still reboots in safe mode, try booting in recovery mode and wipe the cache partition. It could be just some corrupt caches. If the problem continues, then you have no other choice but to do the master reset.
  3. If the problem was fixed in safe mode, it means one or some of your apps was causing the problem. You need to find it and uninstall it. If you don’t have a hint which one is the culprit, then a reset is necessary.

Q:There was a minor update I received about a couple of days ago, which I downloaded as I have no other option. Long story short, the device started to freeze, lag and then it turned off on its own and won’t turn on. It won’t even respond when Power button is pressed so something isn’t right. I’ve been an Android user ever since and I’ve encountered a lot of problems except this one. What do I need to do?

A: For starters, it might be just a system crash. I understand it won’t turn on or respond. Try pressing the volume down and power keys for 7 seconds. If it still won’t turn on then, try to follow this guide I’ve written for S7 Edge that won’t turn on. I hope you’re still within replacement period because if you cannot bring it back to life, you might as well have it replaced under warranty.

RELATED POST: How to fix Samsung Galaxy S7 Edge that won’t turn on [Troubleshooting Guide]

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