Try this first.

Try these first

1. Clean the port. Lint packs into the Lightning or USB-C port. Turn the phone off and gently lift it out with a wooden toothpick. This fixes more "broken" ports than anything else.
2. Try another cable and adapter. Cables fail far more often than ports. Use a known-good cable and a wall adapter, not a laptop or car port.
3. Force restart, then charge for 30 minutes. Press and release volume up, then volume down, then hold the side button until the Apple logo appears. A phone that's fully flat can take a while to show the charging screen.

Try these first

1. Check Battery Health. Settings > Battery > Battery Health. Below 80%, or "Service" shown, means the battery is worn out.
2. Look for a power-hungry app. Settings > Battery shows which apps used the most. An app stuck in the background can drain a healthy battery.
3. Update iOS and restart. A day or two after a big update, battery life often settles down on its own.

Try these first

1. Force restart. If the screen is black but the phone rings or vibrates, the display may have crashed rather than broken. Volume up, volume down, then hold the side button.
2. Cover sharp cracks. Clear packing tape or a cheap screen protector over the cracks stops glass splinters and more spreading until it's fixed.
3. Back up now. Cracked screens can stop responding without warning. Back up to iCloud or a computer while you still can.

Try these first

1. Charge for an hour on a known-good charger. A completely flat battery can show nothing at all for 10–30 minutes.
2. Force restart. Volume up, volume down, then hold the side button for 20 seconds, even if nothing seems to happen.
3. Plug into a computer. If iTunes or Finder sees the phone, the phone is on and only the screen has failed.

Try these first

1. Turn it off and don't charge it. Power and water together cause the real damage. Leave it off.
2. Skip the rice. Rice doesn't pull water out of a phone and leaves dust in the ports. Stand it upright somewhere dry instead.
3. Get it checked within a day or two. Corrosion keeps spreading after it dries. A cleaning early on is far cheaper than a board repair later.

Try these first

1. Clean the notch or Dynamic Island area. Smudges and screen protectors over the sensors break Face ID more often than hardware does.
2. Reset Face ID. Settings > Face ID & Passcode > Reset Face ID, then set it up again in good light.
3. Update iOS. Some Face ID bugs are fixed in software updates.

Try these first

1. Check the silent switch and Bluetooth. Make sure it's not on silent and not connected to earbuds, a car or a speaker.
2. Clean the speaker and mic grilles. A soft dry toothbrush clears lint and pocket dust from the bottom grilles.
3. Test with a voice memo and speakerphone. That tells you whether it's the speaker, the earpiece or the microphone.

Try these first

1. Toggle Airplane Mode and restart. Clears most temporary signal problems.
2. Check with your carrier. An account, eSIM or outage problem looks exactly like a hardware fault. Ask them to check the line.
3. Reset Network Settings. Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings. Wi-Fi passwords will need re-entering.

Try these first

1. Take the case off and close heavy apps. Navigation, video calls and games in the sun heat any phone.
2. Check Battery Health. A worn battery is the most common cause of random restarts.
3. Update iOS and free up storage. A nearly full phone works harder and runs hotter.

Try these first

1. Clean the lens. A fingerprint or pocket lint is the most common cause of blur.
2. Remove magnetic cases and mounts. MagSafe and bike or car mounts can make the stabilizer rattle.
3. Try each lens. If only one lens is bad, only that camera needs replacing.

Try these first

1. Clean the USB-C port. Turn it off and lift out lint with a wooden toothpick.
2. Try another cable and wall charger. Fast chargers and cables fail often.
3. Restart in safe mode. If it charges in safe mode, an app is the problem, not the hardware.

Try these first

1. Restart it. If it rings but the screen is black, a restart sometimes brings the display back.
2. Back up now. Use Google One or Samsung Cloud while the touchscreen still works.
3. Cover sharp cracks. Tape or a protector stops glass splinters until it's fixed.

Try these first

1. Check battery usage. Settings > Battery shows which apps are draining it.
2. Check for a lifting screen or back. That means a swollen battery: stop charging it and get it replaced soon.
3. Turn on adaptive battery. Helps a healthy battery last longer between charges.

Try these first

1. Charge for an hour. A fully drained phone can take a while to respond.
2. Hold power and volume down for 20 seconds. Forces a restart on most Android phones.
3. Look for a charging light or vibration. If it vibrates, the phone is on and the screen is the problem.

Try these first

1. Use the iPad's own adapter. Phone chargers are often too weak to charge an iPad, especially while it's on.
2. Clean the port. Turn it off and lift lint out with a wooden toothpick.
3. Charge it off for an hour. A flat iPad battery can take a while to show anything.

Try these first

1. Restart it. Frozen touch is sometimes software. Restart before assuming it's broken.
2. Remove the case and protector. A bent case or bubbled protector can press on the screen and cause phantom touches.
3. Back up to iCloud. Do it while the screen still works.

Try these first

1. Charge for 30 minutes with the right charger. A drained Mac can need a while before it'll start. Check the cable and adapter on another device.
2. Hold the power button for 10 seconds. Then press it again normally.
3. Reset the SMC (Intel Macs). Shut down, hold Shift + Control + Option + power for 10 seconds, then release and start up. Apple silicon Macs don't need this.

Try these first

1. Shut it down and unplug it now. Hold the power button until it's off. Don't try to keep using it.
2. Turn it upside down in a tent shape. Lets liquid drain out of the keyboard instead of onto the board.
3. Don't wait for it to dry. Sugary or salty drinks keep corroding the board. The sooner it's cleaned, the better the odds.

Try these first

1. Check battery condition. Apple menu > System Settings > Battery > Battery Health. "Service Recommended" means it's worn.
2. Check Activity Monitor. Energy tab shows apps using a lot of power.
3. Look for a raised trackpad or case. That's a swollen battery: stop using it and get it replaced.

Try these first

1. Restart, then check storage. Less than 10% free space slows any computer down.
2. Uninstall programs you don't recognise. Especially toolbars, "cleaners" and browser add-ons.
3. Run your built-in security scan. Windows Security > Virus & threat protection > Quick scan.

Try these first

1. Check the charger or power cable. Try another outlet, and look for a light on the charger.
2. Laptops: remove the charger and hold power for 30 seconds. Then plug back in and try again.
3. Listen for fans or beeps. Fans spinning with a black screen points to the display or graphics, not power.

Try these first

1. Connect an external monitor or TV. If that works, only the laptop's screen (or its cable) needs replacing.
2. Turn up the brightness. Shine a flashlight at the screen: a faint image means the backlight has failed.
3. Back up your files. Use the external monitor if needed.

Try these first

1. Try another HDMI cable and TV input. Cables and TV inputs fail far more often than consoles.
2. Start in safe mode (PlayStation). Hold the power button until the second beep. If you get a picture, the hardware is fine.
3. Look inside the HDMI port with a flashlight. Bent or missing pins mean the port needs replacing.

Try these first

1. Give it space. Keep 4 inches around every vent and don't run it inside a closed cabinet.
2. Vacuum the vents. From the outside only, with the console off and unplugged.
3. Update the system software. Fan control improves with updates.

Try these first

1. Use the official Nintendo charger. Many third-party docks and chargers have damaged Switch consoles.
2. Charge it off for an hour. A fully drained Switch can look dead.
3. Hold power for 15 seconds. Then press it again normally.

Try these first

1. Recalibrate. Xbox and Switch have calibration in settings. It helps mild drift.
2. Update the controller firmware. Through the console's settings.
3. Try it on another console or PC. Rules out the console.