What s the deal with not being able to use a flashlight

If you are using a Huawei phone.

When you click the flashlight in the drop-down status bar to bring up the shortcut operation panel, the flashlight does not light up

1.The phone battery is too low.

Please make sure that your phone is fully charged. When the battery is too low, the flashlight will not turn on by default, it is recommended to charge the phone to more than 15% before trying.

2.The phone is overheating or the flash is too hot.

If your phone is overheating or your flash is too hot, try again after a while.

3.Other applications that use fill lights are called in the background.

Please make sure that before turning on the flashlight, you also have other applications that require a fill light, such as your phone's magnifying glass, turned on at the same time.

or cameras, etc., these applications running in the background will conflict with the flashlight app, resulting in the flashlight not starting normally, please close these apps and try. If you're not sure whether to call an app that uses a different fill light, it's recommended that you try it after restarting.

There are many reasons why the flashlight of the mobile phone cannot be turned on, it may be caused by the flash is broken, it may also be caused by too many programs running in the background of the mobile phone, or it may be due to hardware problems or too low power.

The specific reasons why the flashlight of the mobile phone won't turn on and how to solve it:

1. If the flashlight of the mobile phone cannot be turned on, that is, the flash of the mobile phone cannot be turned on, you can clean up the background of the mobile phone first, there are too many programs running in the background of the mobile phone, which may cause some functions of the mobile phone to temporarily fail.

2. If the method of cleaning up the background does not work, you can first check whether it is a hardware problem with the flash of the mobile phone. Turn on your phone's camera and select Use flash. If the mobile phone flash can be used when taking pictures, it means that it is only a problem with the mobile phone software, and you should be able to turn on the mobile phone's flashlight by restarting the mobile phone.

If the battery of some mobile phones is too low, in order to save the remaining power, the flash cannot be turned on when taking pictures, if the remaining power can support the mobile phone to restart and you can do some operations after the restart, you can choose to restart the mobile phone.

3. If the battery is sufficient when taking pictures, but the flash is still unusable, it is likely to be a hardware problem, and it is recommended to go to the official after-sales service of the mobile phone. Or the mobile phone flash can be turned on when taking pictures, but it still can't be turned on when using the flashlight function, you can first use a flashlight in the mobile phone's application market to see if it can be used, if it still can't, it is recommended to choose to go to the after-sales service to solve the problem.

Old-fashioned flashlights can't be used, you can replace the small bulb or battery and you can use it.

If the flashlight can't be used, then go and buy a flashlight, if you don't want to buy a new one, then check it to be broken, whether the switch is often the easiest to break out of the poor contact, and there is a blind lamp friend who has bad contact and rolls to the tour, repair it well.

Flashlight. It doesn't work, it may be broken, and you can replace it with a new one.

If the flashlight does not work, it may be due to the battery running out of power', or it is possible that the switch is broken.

This is the LED failure of the mobile phone or the flash permission is banned, so the idea of repairing it is to back it up first, restore the factory settings or flash the rescue version of the system, if it doesn't work, it's really a hardware failure.

If the flashlight battery is out of power, the bulb is broken, the switch is in poor contact or broken, you can buy a new flashlight to use.

What kind of flashlight, in general, the battery is not good, the battery is not in good contact, the bulb is bad, the wire disconnect switch is broken, basically this is what if it is really not repaired.

First see if the battery and bulb are in good condition, and then check the switch to see if there is a problem with the contact.

If it is with a battery, check if the battery is dead. If it is a rechargeable battery, check whether the charging circuit is abnormal.

I don't know what kind of flashlight, in general, the battery is not good, the battery is not in good contact, the bulb is bad, the wire disconnect switch is bad, basically this is what if it is really not repaired. The easiest way to buy one is not expensive, only a few dollars, right?

The battery is dead. The flashlight is broken. There is an option to buy another one.

The battery is dead, or the flashlight is broken.

It may be a short circuit or an open circuit in the circuit.

Repair it, and continue to use it to be diligent and thrifty.

Poor contact? Out of power? Broken?

What kind of flashlight is it, charging it or changing the battery, in fact, I recommend changing it.

Flashlights are cheap, buy a new one.

Double-check to see if there is a problem that doesn't work, and if it really doesn't work, buy a new one.

There are many reasons why the iPhone flashlight won't turn on, such as system setup issues, damaged flash, system malfunction, etc.

1. The iPhone flashlight cannot be used, if it is a system setting, open the camera of the iPhone phone, turn on the lightning icon in the base configuration of the camera, and choose to turn on the flash.

2. Open iPhone settings, enter General in turn, find the Accessibility option, and turn on LED flashing to remind you to turn on the flashing function.

3. If the flashlight still can't be used, it may be that the program is stuck, press the home button of the iphone to return to the desktop, then double-click the home button to switch to the multitasking management interface, and close all application software.

4. Rely on other flashlight software to test and detect, you can use some flashlight software in the App Store to test whether the system or flashlight is damaged and causes the source.

5. If the flashlight software can be used, but the flashlight that comes with the iPhone cannot be used, it can be sure that it is a system problem, and it is recommended to update the iPhone system to the latest iOS version.

6. You can also open the iPhone settings, enter the general, press reset, reset all settings, or erase all content and settings to restore the factory settings of the phone, and try to reset the flashlight flash after resetting the mobile phone sales hall system.

7. If it is ** other flash software can not be opened and used, then it may be caused by the damage of the iPhone flashlight or other hardware problems, it is recommended that Apple contact after-sales inspection and maintenance to solve it.

Take Huawei P40 as an example, the specific operation method is as follows:

1. It may be that the mobile phone flashlight function cannot be started normally due to the low battery of the mobile phone, at this time, the mobile phone should be charged to more than 15% before trying.

2. It may be caused by the high temperature of the mobile phone, you can wait patiently or physically cool the mobile phone, and then try to turn on the flashlight again.

3. It may be caused by the conflict of the mobile phone program, when the Qiaoyin mobile phone turns on the flashlight before turning on the flashlight, the program will conflict with the flashlight of the mobile phone, and then it is impossible to use the flashlight normally. You can close other programs before attempting.

4. It is also possible that the LED light or LED driver of the mobile phone is faulty, and the mobile phone can be sent to the designated maintenance point for repair.

It should be noted that this answer is applicable to most brands of mobile phone models such as Huawei, Apple, Xiaomi, OPPO, etc.