Repairing Guides

how to repair flashlight

by Miss Thelma Lowe I Published 2 years ago Updated 1 year ago

How to Repair Flashlight Switch (Fix Tailcap Switch)

  1. Gently Pull the Rubber Cap
  2. Use Something Thin But Not Sharp to Push the Plastic Housing Out of the Tailcap , Tap It Gently
  3. Pull the Switch From the Plastic Housing
  4. Measure the Resistance of the Switch to Make Sure That the Problem in the Flashlight Is Caused by the Switch Not From the Pill
  5. Use a Thin Object to Pry Open the Switch Through the Holes on the Sides
  6. After Opening the Switch , Clean Its 3 Pins Very Well. Use a metal File or Sand Paper to Remove any Rust from The Surface of the Conductors.
  7. After Cleaning the Pins, Reassemble the Switch
  8. Measure the Resistance of the Switch. Before the Repair The Resistance was 13 ohm, After the Repair, it Became in the Range of 0.01-0.1 OHM , Which means ...
  9. Put the Repaired Switch Back in the Plastic Housing
  10. Insert the Rubber Cap
  11. Insert the Plastic Housing , Then Tap It Lightly to Secure It in the Tailcap
  12. Connect the Tailcap to the Flashlight and Test It. For More Details, Watch the Eembedded Video. If playback doesn't begin shortly, try restarting your device.

Full Answer

How do you fix a flashlight?

  • An award-winning architect has transformed an old car workshop into a one-of-a-kind family home
  • Matt Elkan's 'Smash Repair House' is sandwiched between Victorian terraces in Paddington, near Sydney CBD
  • It has been described as the perfect balance of heritage character and charm and modern luxury

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How to make a flashlight from scratch?

  • Preheat the oven to 350 degrees, mist a 9x13-inch pan with nonstick spray, and line with parchment. ...
  • In a large bowl, whisk the flour, cornmeal, sugar, baking powder, and salt together.
  • Whisk the melted butter, milk, oil, and eggs together in a large liquid measuring cup.
  • Pour the liquid ingredients into the dry and stir together until combined.

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How to protect yourself with a flashlight?

  • The sun is the strongest between 10am and 4.00pm
  • You can be outside longer before 10.00am and after 4.00pm
  • Avoid staying right in front of a non-tinted window as UV light can still penetrate through

How to fix rechargeable flashlight?

You will need:

  • Q-tips or cotton swabs
  • Rubbing alcohol
  • A pencil eraser
  • Lemon juice or vinegar
  • A flat head screwdriver


How do you fix a broken flashlight?

0:123:01how to fix led flashlights - YouTubeYouTubeStart of suggested clipEnd of suggested clipFor a little file. Go around these edges really good go around these edges really good inside there.MoreFor a little file. Go around these edges really good go around these edges really good inside there. And I said once you get that sanded down put the battery make sure you put in the right direction.

What causes a flashlight to stop working?

Reset app preferences There is also a possibility you might have tweaked app preferences in a wrong way that may cause the flashlight to stop working. App preferences include app permissions, disabled apps, and default apps, etc. Here's how to reset app preferences: Go to the phone “Settings” and tap on “Applications”.

How do you revive a flashlight?

To clean, open the flashlight and remove the batteries. Use a cotton swab to clean all visible dirt inside the battery compartment. If the contacts are dirty, apply a little rubbing alcohol with the swab to clean them off.

How do you fix a LED flashlight?

0:025:15HOW TO FIX AN LED FLASHLIGHT - EASY DIY BATTERY HACKYouTubeStart of suggested clipEnd of suggested clipLet's get to it I'm going to show you how easy it is to fix one of these LED flashlights and theyMoreLet's get to it I'm going to show you how easy it is to fix one of these LED flashlights and they all seem to suffer from the same fault.

How do you disassemble a flashlight?

How to Disassemble LED FlashlightsPut the newspaper down on a work surface. ... Hold the back end of the LED flashlight with one hand. ... Put the back half of the LED flashlight down on the newspaper. ... Pull the LED assembly carefully from out of the front half of the LED flashlight. ... Heat up the soldering iron.More items...

Can you replace LED in flashlight?

Take the LED flashlight into a hardware store if you need a new bulb. Unlike incandescent flashlights, LED flashlight bulbs can only be replaced by professionals.

Do LED flashlights burn out?

Unlike incandescent light bulbs, LEDs don't produce light using heat. This is part of what makes them so energy efficient. The downside is that their components can be sensitive to overheating, which can cause them to burn out prematurely.

Why does my Duracell flashlight keep turning off?

What if the flashlight blinks and flashes and then turns itself off? The batteries may be weak or dead. Replace with new batteries and power on again. Check that the batteries are placed correctly into battery holder.

Why did my iPhone flashlight turn off?

This may be simply because your device doesn't have enough battery power left to support the feature at that moment. Therefore, you should plug your iPhone into a power source and start charging it. The flashlight feature should start working again once your iPhone has sufficient power.

Can not turn on flashlight because hardware is being occupied?

Check device is not in power saver mode Turn off Power saver mode to make your flashlight working again. To turn off power saver mode; Go to SETTINGS >>> BATTERY SAVER >>> Tap the 3 dots at the Top right corner >>> TURN IT OFF.

Why is my flashlight disabled iPhone?

Is your iPhone flashlight greyed out? You will see a grey flashlight icon in the Control Center when the camera app is running. All you have to do is close it. Until the greyed out switch is gone, you won't be able to turn your flashlight on.

The Parts of an LED Flashlight

Before you learn how to fix a broken LED flashlight, you will need to learn the main parts of a regular LED flashlight. Here is a quick guide if you are not yet familiar with the names.

Make a Diagnosis

Now that you are more acquainted with the parts of your device, you will need to pinpoint the exact problem you are having with your LED flashlight. Is it shining dimly? Is the light flickering? Maybe it merely will not turn on.

Things You Will Need

How To Fix An LED Flashlight? Once you have determined what needs fixing, you will need to gather some items. This will depend on the problem you are trying to solve. These are items you should already have at your disposal if you are prepared and responsible.

Solutions to Try

The time after an emergency has occurred is vital. Once you have secured the safety and well-being of you and your loved ones, you should immediately take stock of your situation.


Taking proper care of your flashlight can save you trouble, but, of course, there are times you will need to repair even your most high-quality LED flashlight. Now that you’ve read our article on how to fix an LED flashlight, you can feel secure whenever and wherever you bring them.

Step 5: Use a Thin Object to Pry Open the Switch Through the Holes on the Sides

if your Switch Does not Have Holes on the Sides Then use Something very thin

Step 6: After Opening the Switch , Clean Its 3 Pins Very Well

Use a metal File or Sand Paper to Remove any Rust from The Surface of the Conductors.

Step 8: Measure the Resistance of the Switch

Before the Repair The Resistance was 13 ohm, After the Repair, it Became in the Range of 0.01-0.1 OHM , Which means it became as good as new.

Why won't my flashlight turn on?

It’s always best to start with the simplest solution first which would be the battery. If your flashlight has a dim or weak light or simply won’t turn on, it could be the battery. Check the battery in the flashlight to make sure that it still has charge in it. You might just have to replace or charge the battery.

Why is my flashlight flickering?

If your flashlight is flickering there could be dirt getting in the way of the electrical current. You want to make certain your flashlight is clean of grime, especially inside the body, head, and tail.

Where should the tactical ring be placed on a flashlight?

The tactical ring should be placed before the o-ring. In other words, the tactical ring should be closer to the head of the flashlight than the o- ring. If the o-ring is placed in front of the tactical ring the tail cap won’t be able to tighten all the way, preventing the flashlight from turning on.

How many o rings are on a Viking flashlight?

Some flashlights, like the Armytek Viking Pro, come with two o-rings on the head. However, many flashlights won't turn on if there are two or more o-rings at the head or tail. Check to make certain there is only one o-ring at the head and one o-ring at the tail.

When were flashlights invented?

The first battery-powered flashlights appeared around 1899, but it wasn’t until the early 2000s that LED flashlights were made.

Why do people use flashlights in camping?

Background Information. Not only are flashlights a camping necessity so you can shine the light on your face and make your ghost story that much spookier, but they are also useful for seeing in the dark, too. Flashlights enable users to carry a light source with them instead of dragging around a lantern or, even worse, ...

The contacts are bent or corroded

In addition to the two metal strips in the switch, there are brass or copper contacts that touch the battery. These contacts typically consist of a spring and a flat metal piece, both of which are accessible via the battery case.

The inside of the flashlight is dirty

It should be clear now that whether a flashlight works or not is largely dependent on the metal contacts that create the electrical circuit inside the flashlight. If any one of these contacts fails to work properly, the electrical circuit will not complete, and the flashlight won’t light.

The O-rings are broken

O-rings are the rubber gaskets that fit around the parts of the flashlight that open, such as the battery compartment and lamp. These rubber rings prevent water and dirt from getting inside of the flashlight when the compartments are closed and the flashlight is in use.

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