«My mobile turns off suddenly«. Has this happened to you? Any operating system or electronic device is prone to, at least, small problems that can cause us more than a shock. In addition, the fierce competition from all manufacturers can be a precipitating event, both when creating new software and hardware. The iPhone is not 100% free of problems either, as a strange one that we can experience in which we see as the iPhone shuts down for no apparent reason.
When an iPhone shuts down once and we don't know why, it could have been from anything. An isolated problem is not a problem until it happens more often or we know that it is happening to more users. If we know that many devices of the same family are suffering the same problem, we already know that the brand, in this case Apple, has to publish a statement in which it explains how it intends to fix the problem and if it is due to a failure of hardware or software. But what if we are experiencing this type of failure alone? Logically, if our device is the only one that is experiencing a problem, the fault is in our device. Arriving at this conclusion, we have to investigate whether the problem that affects us is hardware or software.
Causes why your iPhone can turn itself off
That an iPhone turns off by itself is not normal, that must be clear. On the other hand, if this happens to us, it may not be something serious.
Although we are talking about the iPhone in particular, the truth is that all these tips can be applied to all those whose mobile phone, Apple or not, suddenly turns off:
- Has run out of battery. It will seem silly, but it is not, especially if we are not looking at the iPhone for a long time. It would not be the first time that we have spent several hours without looking at a device and when we look again we do it to discover that the phone does not turn on. In these cases we can get scared, since an iPhone that has used up all its battery does not usually respond until it has received a little charge.
- Has warmed up. Another possibility is that it got too hot, displayed a warning, and then turned off. It is not very normal, but in summer it can be very hot and the iPhone is disabled to protect its circuitry. This is something I have seen when I have been out on the bike and I have had my iPhone inside its case, it has gotten hot and I have seen the warning. If I had continued without taking action, the iPhone would have "decided" to turn off.
- Due to some software failure. It is not common either, but it can happen. Sometimes a bug in iOS can cause the iPhone to reboot, causing us to see Apple's apple. The normal thing in these cases is that it returns to the Springboard but, if the failure does not allow it, it is also possible that the device shuts down completely.
- Battery health is no longer good. Batteries have a lifespan and they wear out. Poor health will lower autonomy and make the first point more likely.
- The battery is poorly calibrated. Which will bring us to the next point.
Why does the iPhone turn off when it has a battery?
Sometimes it can also be turned off when everything seems fine. But if everything is fine, why does it turn off? Logically, because not everything is as good as we thought. Sometimes an operating system, to put it simply, does not communicate well with hardware that makes up the battery. If the software does not "understand" the information provided by the battery, it will understand that it has a certain percentage that it does not really have. For example, if the iPhone misunderstands that it has 50% battery when in fact it has 20%, when the iPhone software had to mark 30% in reality the battery would be completely exhausted, so, logically, it is will turn off. If we realize that this is happening to us, we will have to calibrate battery, which we will do as follows:
- We use the iPhone until it has no battery left, that is, until it turns off by itself. If we get bored, we can always put a video without sound and leave it upside down.
- We leave it off without using it for 6 or 8 hours.
- Finally we connect it to the electrical network and leave it charging for another 6 or 8 hours. During this time we can already use it if we want, but always connected to the electrical network.
If you have questions about this or want to know the benefits of this practice, do not miss our tutorial to learn how to calibrate iPhone battery.
Battery health
As we have previously mentioned, the battery has a finite life. It could be said that living beings lose years every 365 days, and in the case of batteries the equivalent would be the charge/discharge cycles. More or less. Apple usually guarantees that its iPhones will maintain 80% of this health when the device is 5 years old, perhaps more so on iPhone 15 and later. It is inevitable, but something can be done to delay this wear and tear.
For a few years now, iOS has had an option in which the iPhone learns our usage habits. When we put it on charge and pick it up at the same times, the iPhone It will charge up to 80%, stop charging and continue it so that it is at 100% when we go to use it. This, which can be disabled, is worth leaving as is, as it will protect the battery. There are even studies that say that to extend the health of the battery it must always be between 20% and 80%, no more and no less. It is a fact that constantly letting it turn off completely and having it plugged into an outlet when it is at 100% is not the best.
To find out how the battery health of the iPhone, we have to go to Settings / Battery / Health and battery charge. There we will see one or another options depending on the iPhone and the iOS version. In iOS 18 and the iPhone 15 it can be configured so that it does not charge beyond a specific percentage point. Health will be indicated by "Maximum Capacity". When the device is new it will be 100%, but we will see how the value decreases over the years. In the same section we will see a message that suggests changing the battery if the health is no longer good.
The reading we have to make of that percentage is very simple: what the iPhone battery can charge when purchasing it is 100%, and the new value is the maximum it can currently reach. Let's assume that, rounding up, a device is capable of displaying 10 hours of video when the battery is at 100% health. A simple rule of three will tell us that if it is at 80%, it will only be able to handle 8 hours of video.
What to do if your iPhone shuts down suddenly
As we have already mentioned above, this is not normal, but it can have an easy solution. If our iPhone turns off suddenly, we will do the following in order, to eliminate possibilities:
Plug our iPhone to the charger
If our iPhone has suddenly turned off, the first thing we will do, logically, is check if it had battery enough. We may try to turn on the iPhone and it won't boot, but you don't have to panic. Something that I have never liked but that is normal, when an iPhone drains all its battery it will not respond until it receives a little power. We can try to turn it on from the power / sleep button, force a restart, or plug it into a power outlet, but it will not respond and we will think that the device is "dead." But not. If we leave it charging for a few minutes, it will soon turn on by itself. That is if you do not have a much more serious problem. I have even seen rare cases that I could not explain in which as soon as I connected it it has turned on and has marked 30% battery.
If we connect it to a power outlet and after a maximum of 30 minutes it does not respond, we will go to the next point: Force a restart.
Oh, and if it has run out of battery and you want it to charge as fast as possible, follow these tips to speed up iPhone battery charge.
Restart the iPhone
This is the second step we must take if our iPhone turns off when it shouldn't. People say that force a reboot solves up to 80% of those small software errors that we cannot explain. Forcing a restart is a very simple and lossless process, although the exact path will depend on the model. All of the following must be done until you see the apple on the iPhone screen:
- In models with a recessed home button, that is, up to the iPhone 6s/Plus, the combination will be the power off button next to the home button.
- In models with a touch start button, such as the 7/Plus and 8/Plus, the combination will be the power off button next to the volume down button.
- In more current models without a trace of a home button and with Face ID, the combination is volume up -> volume down -> off button, and keep the last one.
If we stop the combination before seeing the apple we will only be able to force a shutdown, which in this case would not help us, since what we want is to restart the iPhone.
Install the latest version of the operating system
This advice is valid for any electronic device that uses an operating system. If we are experiencing a problem (and we do not maintain a version of iOS due to the almost extinct jailbreak, for example) the best thing to do is install the latest version of the software available. It may seem like an unimportant advice, but different software updates are released, in addition to adding new functions, fixing bugs. By installing the most up-to-date version of an operating system we will ensure that, at the very least, we will use a more polished version that could solve our problem.
Restore iPhone
The next step that we can try ourselves is to restore the iPhone. The idea is to make a clean installation which eliminates all possible software problems. The best way to restore an iPhone is from the macOS Finder, connecting the iPhone, allowing the connection, and restoring with a secondary click. From Windows you can also, currently from iTunes:
- We connect the iPhone to our computer with the USB-C or Lightning cable.
- If it has not opened automatically, we open iTunes.
- At the top left, we select our device.
- In the window on the right, we choose Restore. This will download the entire system from Apple's servers and install it on the iPhone.
- When it starts, we set up as a new iPhone. We did not recover any backup, since it could drag the problem that we were experiencing and we wanted to eliminate by restoring the device.
And for this, you may be interested in learning to put your iPhone in DFU mode.
Change battery
The last step in the event of any problem has to be to take it to technical service. It's not that it is the worst option, but why bother taking a device to be repaired if we can solve the problem ourselves? With this in mind, the last step we can take is change battery. If I have to be honest, it is not something I recommend doing to anyone, but to people who are good at repairing today's devices. It is a possibility, and I think it is important to be sure that the problem is the battery. For example, if your health is no longer what it was.
Batteries for devices are offered of all types and in many stores, but the best will always be official batteries. It is possible that a third-party one will work out well for us and we will save a few euros, but taking into account the history of iPhone problems with components unofficial, I wouldn't risk it.
Contact Apple Support
If with a clean restoration our battery problems continue, it is most likely that our iPhone has a hardware problem (physical). If we have reached this point, it is best to contact Apple technical service. If the device is under warranty, they will offer us a solution at no extra cost. If it is not under warranty, we will be charged for the repair, so another possibility is to have it repaired by an unauthorized service. But be careful with the latter, since the remedy may be worse than the disease.
My iPhone turns off when I unlock it
Like almost everything explained in this article, It's not normal at all An iPhone turns off when unlocked. Normal behavior should be far from that, but there are some users who experience this problem. The solution given in the Apple forums is something already covered here, and the first thing we have to do if we experience this behavior is force a restart (see above). It seems clear that this is a software problem, so the following steps also have to go in this direction, the last being to restore the device.
Since what is always happening is after an action, well, I don't think the Shortcuts application has any option to replicate this behavior, but I would take a look. It is not impossible that we have something there that is causing the failure, and I would deactivate automations to make sure that none of them are bothering us.
My iPhone 6s shuts down on battery
Unfortunately, you may have a Apple recognized problem. There were some devices manufactured between September and October 2015 that were affected. The company launched a replacement program, but it has long since ended. For information, those affected had Q3, Q4, Q5, Q6, Q7, Q8, Q9, QC, QD, QF, QG, QH or QJ in their serial number. If you look in the settings, find those letters and taking everything into account, I think the best thing to do is to renew your phone.
Havehow to know if my iPhone is loading
Knowing if our iPhone is charging is very simple. We will see the following:
- As soon as you connect the cable to a power outlet and the USB-C/Lightning to the iPhone, we will see an animation image whose color depends on the charge we still have, accompanied by a sound that depends on the version of iOS we are using. We can also see different animations, those of the latest iPhone with Dynamic Island being less intrusive.
- If we have missed the animation and the sound that I talk about in the previous point, we can still know it in another way: the icon of battery what's on the top right will be acomorning de a ray and it will be this beam that lets us know that the iPhone is charging.
How to know if my iPhone turned off is charging
The Iphone does not show any notification when charging when off, so the best thing to know is to turn it on. Sad, but that's the way it is. It has been a long time since you could know when you pressed the sleep button for a short moment, which made the poop drawing appear, but it seems that the option has disappeared in a recent iOS update
Another thing we have to take into account is what happens when we let la battery from an iOS device to completely run out: when connecting the iPhone charging cable we will see the icon of a depleted battery and a lightning bolt that indicates that we start charging the iPhone. Once done, it will take a little time for the iPhone, iPod Touch or iPad to react, which can be 3 or 4 minutes or a little longer, depending on each case. While it is receiving this charge, if we press the power button we will see the same image of the exhausted battery and the lightning, so be patient. When it has a minimum battery, it will turn on automatically.
Conclusion
Nobody likes to see their iPhone turn off suddenly, and even less so considering the money we have paid to enjoy the best smartphone From the market. It is not something usual, but anything can happen. In many cases the problem is solved by calibrating the battery but, if this is not the case, it is best to take it to an Apple Store. Have you fixed your iPhone battery problems?
We sincerely hope that after the information we have given you, you never have to complain that my phone turns off just suddenly.
