What is the reason why the LED 9 head small flashlight does not light up

It is estimated that the battery has been short-circuited.

How to recover the mobile phone flashlight does not light up and rent pants, here we take Huawei nova8i and EMUI as an example to solve the problem.

1. First turn on the camera and take a photo. If the flash is normal, it is a problem with the mobile phone system. If the flash does not start, it is a flash hardware issue.

2. At this time, open the settings in the mobile phone.

3. Then in the settings page that opens, the point grinding type quick tap application enters.

4. Then, on the page that opens, click on Application Management.

5. Finally, in the page that opens, click Restore Default Settings to fix it.

If you are using a Huawei portable phone, and when you click the flashlight in the drop-down status bar to bring up the shortcut operation panel, the flashlight does not light up, please perform the following steps:

1.Make sure your phone is charged.

When the battery is too low, the "flashlight" will not turn on by default, and the phone will be charged to more than 15% before trying.

2.Make sure your phone or flash is not too hot.

When the temperature of the mobile phone or flash is too high, the mobile phone will trigger the overheating protection, and the "flashlight" will not be turned on by default, and the mobile phone temperature will be lowered and try again.

3.Make sure the flash is not occupied by other programs.

Make sure you don't open an app that requires a call to the fill light, and if you're not sure if it's on, clean up the memory or try after restarting.

If you still can't turn on the flashlight, please contact Huawei Consumer Service** (950800), back up your data in advance (third-party apps such as QQ and WeChat need to be backed up separately), and bring the relevant proof of purchase to a Huawei customer service center near you for further assistance.

Huawei Customer Service Center.

Repair spare parts** inquiry.

Boarding service.

If you are using a vivo mobile phone and the flashlight cannot be used, you can do it as follows:

1. Restart your phone;

2. Check whether it is caused by low power;

Reset all settings Erase all data;

Note: Restoring all settings will not delete any data or files, only all settings of the phone will be restored, some third-party application accounts need to be logged in again, please confirm that it does not affect the use of the software before operating. For the safety of your data.

It is recommended that you back up your phone data in advance before the operation.

"Erase All Data" will restore the phone to its initial state, delete all data in the system space of the phone, including account, system and application data and settings, and installed apps, please back up the important data on the phone before the operation.

4. If the above methods cannot be solved, please back up your mobile phone data in advance and bring your mobile phone to the vivo customer service center for testing and processing. (Vivo customer service center address query method: enter vivo official website vivo**app--my--outlet query or vivo official website web version--scroll bottom--service support--service network with point query--select provinces and cities to query the customer service center address).

Tips: It is recommended to bring relevant purchase vouchers (such as: purchase invoice, warranty card, ID card, and consult the staff of the consultation center in advance to ensure that the staff goes again during normal working hours, avoid empty running, and pay attention to safety on the way to and from the home.

The two LEDs at home are not normal, and they will be disassembled and inspected and repaired in the afternoon. The result is a good one, or the contact is not good, I don't know what the reason is?

Bad contact, focus on the switch.

Take iphone11, ios13 system as an example, the flashlight does not light up and the reasons why the socks are thick are:

1. The Apple flashlight is not lit, it may be caused by the LED light of the flashlight is broken, you can contact the after-sales service or go to the mobile phone repair shop for repair, so that you can solve the problem that the Apple flashlight is not lit.

2. The Apple flashlight is not lit, it may be caused by a broken driving circuit, you can turn off the mobile phone and restart it, if it really doesn't work, you need to find a professional to repair it.

3. If the system of the Apple mobile phone type town fails, then there will be a situation where the Apple flashlight does not light up, and you can contact Apple's after-sales service to overhaul the mobile phone, so that the problem of the flashlight not lighting can be solved.

4. If there is a situation when using the application software, then the flashlight of the Apple mobile phone will not light up, you can wait until the stuck situation is restored before turning on the flashlight, so that the flashlight will light up.

5. If you want to turn on the Apple flashlight when the camera is enabling the flash, then the flashlight will not light up, you can wait until the camera turns off the flash before turning on the flashlight.

This answer applies to most Apple phone models.

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.Make sure that the temperature of your phone or flash is unknown.

When the temperature of the mobile phone or flash is too high, the mobile phone will trigger the overheating protection, and the "flashlight" will not be turned on by default, and the temperature of the mobile phone will be lowered and try again.

2.Make sure the flash is not occupied by other programs.

Make sure that you don't open an app that needs to invoke a fill light.

If you're not sure if it's on, clean up the memory or try it after restarting.

3.Make sure your phone is charged.

When the battery is too low, the "flashlight" will not turn on by default, so charge the phone to more than 15% and try again.

If you still can't turn on the flashlight, please contact HUAWEI Consumer** (950800), back up your data in advance (third-party apps such as QQ and WeChat need to be backed up separately), and bring your purchase voucher to a nearby Huawei Customer Service Center for more assistance.

Huawei Customer Service Center.

Boarding service. Repair spare parts** inquiry.

The iPhone flashlight button is dimmed but won't turn on, which is caused by the wrong setting. Here's how to fix it:

1. First of all, unlock your iPhone, and then click on the buoy on the desktop, as shown in the picture below.

2. Then select the control center in the buoy, as shown in the figure below.

3. Click the flashlight icon in the lower left corner, as shown in the figure below.

4. Finally, when the background of the icon is white, the flashlight will be activated and the phone will glow, as shown in the image below.

Taking vivo mobile phones as an example, the reasons why the flashlight does not light up are:

1. The flashlight parts are damaged, in this case, it is recommended that the user contact the after-sales service to overhaul the mobile phone.

2. If the mobile phone system fails, then the user can try to restart the mobile phone or upgrade the operating system, and then try to turn on the flashlight.

Flashlight: (English: flashlight or torch), referred to as torch, is a hand-held electronic lighting tool.

A typical flashlight has a battery-powered bulb and focusing mirror, and has a handlebar housing for hand-held use. Although a fairly simple design, it was not invented until the late 19th century, as it had to be combined with the invention of the battery and the light bulb.

After equipping the LS button, I didn't pay attention to this problem at first, thinking that the power was running out, and one day I lost the handle and found that the flashlight was on, so I tried it out.

It's an LED emitter

1. The battery is dead (insufficient voltage).

2. The positive and negative poles of the battery are reversed and do not light up

3. It may also be a problem with the circuit board.

There are two possibilities. One is that the battery is dead, and the other is that the quality of the flashlight is not good.

The phone flashlight can be turned on, but the LED light is not on.

The mobile phone flashlight can be turned on, but the LED light is not lit, what is going on, hello dear It is possible that the mobile phone flashlight function cannot be started normally due to the low battery of the mobile phone, and 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 mobile phone opens the program that needs to call the flash before turning on the flashlight, the program will conflict with the flashlight of the mobile phone, and then the flashlight function cannot be used 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. I hope my answer is helpful to you, and finally I wish you good health and a happy mood again!

If you are using a vivo phone and the flashlight does not work, try the following:

1. Please restart it and operate again;

2. It may not turn on when the battery is low, please try again after charging;

3. When the temperature of the fuselage is high, the temperature control protection will not be turned on if the temperature control protection is triggered, please turn off the screen and wait for the temperature to drop before turning on;

4. Enter the background multi-tasking interface, clear the background application and then operate;

5. Go to Settings - System Management More Settings - Backup & Reset - Restore All Settings - Restore; Try opening it again; Restoring all settings will not delete any software or files, only all settings of the phone will be restored, for data security, it is recommended to back up the phone data in advance before operation.

6. If the above methods fail to solve the problem, please back up the data in advance, and bring the machine and purchase voucher to the vivo customer service center for testing (the customer service center is the only registered address: enter the vivo official website vivo**app--my--service outlets, after-sales outlets--select the province and city to query the customer service center address).

Take the vivos6 mobile phone, the system as an example:

1. It may be due to the lack of pure failure of the program caused by the failure of the mobile phone system, you can restart the mobile phone first, and then try to use the flashlight function, or reset all the application settings in the mobile phone, and then restart the mobile phone, and then try to use the flashlight function of the mobile phone.

2. It may be that there is a conflict between the apps, and you can open the phone"Settings"function, enter"Application management"interface, find the app that affects the operation of the flashlight, click on the app, and clear the data.

3. It may be that the flashlight that comes with the vivo mobile phone is malfunctioning, resulting in no response when the flashlight of the mobile phone is turned on, and there is no bright light. In this case, the mobile phone can generally only be handed over to a professional repairer for repair and replacement.

If you want to check if your phone's flashlight is damaged, you can turn on your phone first"Camera"application, turn on the camera flash to take pictures, if the flash is normal, it means that the software in the mobile phone is faulty, if the flash is not on, it means that the hardware of the flash may be damaged, in this case, you need to go to the after-sales office of the corresponding brand to replace the new hardware to use the flashlight function.

The above situation and methods are applicable to mobile phones of brands such as vivo. )