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Samsung Galaxy S5 Shuts Down / Turns Off Automatically And Won't Come Back On

By: Harold Hisona | Thursday, September 25, 2014

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I spent a few days researching on topics related to the Samsung Galaxy S5 that automatically shuts down or turns off without apparent reason. This post will guide you through a systematic troubleshooting procedure that may lead to the discovery of the root cause of the problem.



The procedures I include here are safe and easy that you don't need to have advanced knowledge with Android to be able to follow them. Additionally, I never advice my readers to follow steps that could void the warranty of their devices. So, if you're looking for some jedi tricks that could fix the problem in one touch, I tell you now, you're in the wrong place.

MORE FIXES: Samsung Galaxy S5 Troubleshooting & Repair Guide

While it's been just a few months since the phone was released, there are already a lot of users complaining about their problems with the phone. However, it doesn't necessarily mean that the phone is at fault here. The fact is, most of the problems are related to the firmware, apps (both third-party and pre-installed), and updates. And if your problem is related to one of those, then there is a chance, a big chance, you can fix  it without professional help.

If your Samsung Galaxy S5 turned off and won't respond when you pressed the Power key, try the following procedures.



Samsung Galaxy S5 Shuts Down When Its Battery Is Depleted

Of course, right?! So, before you actually perform other troubleshooting procedures, you have to make sure it's not a battery issue. Just follow this simple procedure:
  1. Plug the phone in to charge using the original power adapter.
  2. Let it charge for 5 to 10 minutes and then observe to find out if the phone displays the usual charging icon or if the LED notification light is glowing red.
  3. If it neither displays the icon nor glows red light, unplug the phone and remove the battery.
  4. While the battery is out, press and hold the power key for 30 seconds.
  5. Place the battery back in and attempt to charge. If the phone still won't charge after that, to plug the cable to a computer.
  6. If the phone refused to charge with the computer, try a different battery. I suggest you borrow one from someone who also has an S5 because there is no guarantee that buying a new one would fix the problem. If the problem goes beyond this point, then it's a hardware issue.

However, if the phone was charging fine but still refused to boot up or didn't  respond to the Power key, proceed to the next procedure.

Triggered By A Third-party / Pre-installed App Issue

When as app, regardless whether it's a third-party or came pre-installed with the phone, goes rogue and affects core services, the phone will freeze, hang, slow down, reboot or shut down. The problem is you can't tell immediately if it's an app that's causing the issue and which one.

When the Galaxy S5 shuts down and charges fine, it is always logical to rule out the possibility that one of the apps is causing the problem. To do that, follow these steps:
  1. Boot the Galaxy S5 in Safe Mode to isolate the problem. By doing this, you'll know if it's a third-party or pre-installed app that may be causing the problem.
  2. Observe the phone closely while in safe mode. If the problem remained (i.e. the phone still shuts down), then the issue is with one of the pre-installed apps. However, if the phone performed normally, then it's one of the third-party apps that is the culprit.
  3. For issues with pre-installed apps and you don't know which one it is, boot the phone in recovery mode and wipe the cache partition . It usually works.
  4. For problems related to third-party apps, clearing the cache and data may fix the problem if you knew which one is causing the problem. So, you need to go through each of the app you downloaded and installed. Please note that clearing the data will delete your settings, personal information and saved progress (like in games). 

Frankly, you are lucky if you bought the phone to boot in safe mode. If the phone, however, refused to boot in safe mode, then it is a possible firmware issue. Proceed to the next procedure.

Triggered By A Firmware Issue

This is a more serious problem and usually happens after an interrupted update. Yes, when you updated your phone and the process was interrupted, there is always a big chance that some of the data were corrupted. In this case, the phone will not function properly and automatic shut down is just one of the symptoms.

By the way, you will know if the problem is with the firmware because the phone may pop up some error messages and the it will not boot in safe mode. That is why it is imperative you try booting the phone is safe mode first. Here's what you need to do in cases like this…
  1. Boot the phone in recovery mode and wipe the cache partition.
  2. If the device wouldn't turn on or boot up successfully after wiping the cache partition, then perform factory reset.
  3. In case the problem persisted after the reset, the firmware need to be re-installed. 

You may need to send your device for a couple of weeks. Or, better call your service provider and see what it can do to fix your problem. This problem is out of your league especially if you don't want to void the warranty.

For those who are techie enough, you may flash the previous version of the firmware using Odin.

Caused By Physical Or Liquid Damage

It's very simple, if you dropped your phone and it turned off and refused to come back on, then the impact of the drop may have damaged hardware component(s) inside. You can't claim warranty if this was case because Samsung considers this as 'negligence' on the part of the owner.

If the back cover and multi-purpose weren't properly covered and the phone was submerged in water even for a few seconds, and then it turned off, water may have entered the phone. DO NOT attempt to turn the phone back on. Instead, remove the battery immediately and place the phone in a bowl of rice. You can also bring the phone to a technician and have it cleaned up before turning it on. Liquid damage is also not covered by warranty.

Galaxy S5 Shuts Down When It's Overheating

When you're connected to a mobile data network and downloading a large file while gaming, it is more likely that the phone will overheat. Consequently, the phone will automatically shut down if the temperature goes beyond the threshold. This is the device's fail-safe procedure to avoid components from getting burnt.

You'll know if the cause of the shut down is overheating because the phone will emit unusual heat that cause discomfort when you hold it. While it cools down over time, I suggest you remove the battery and leave the phone be for several minutes to cool down faster.

In case the Galaxy S5 heats up even if it's off, there is a problem with the USB charge port or its circuitry. You need to have the phone checked immediately.

Please note that constant overheating will cause damage to the phone so if you feel that the phone is already heating up unusually, don't wait that it would shut itself down. Turn it off and let it rest for at least 30 minutes.

Galaxy S5 Won't Shuts Down When There's A Hardware Issue

After exhausting all troubleshooting procedures I cited here and the phone still refused to come back on or the problem recurs often, it must be a hardware problem.

Again, this is way out of your league so have a professional take care of the problem for you. You can call Samsung and seek help or you can bring the phone to your service provider and have it checked by its technician. If the phone is beyond economical repair, a replacement unit may be provided.

Send Your Problems

I support all devices running Android. If you have issues with your phones you can't understand or fix, send me an email at harold@droidista.com or join my community [click here to join] and tell me about them, I may be able to help you fix them or find solutions. I don't charge a single penny for this service so please be considerate and provide as much details as possible.


 

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1. email me at harold@droidista.com
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