
Clean a SIM card on iPhone
Clean an iPhone SIM card and tray safely with a dry lint free cloth. Learn what to avoid, how to test the SIM, and when to get a new one if your iPhone says No SIM.
Task-first guides. Each one answers a single question and gets you to the result in as few steps as the device allows.
140 guides

Clean an iPhone SIM card and tray safely with a dry lint free cloth. Learn what to avoid, how to test the SIM, and when to get a new one if your iPhone says No SIM.

You cannot move a full iPhone backup from iCloud to Google Drive, but you can move your photos, files, contacts and calendar. See each method and what to expect.

Find APN settings on your iPhone in Settings › Cellular › Cellular Data Network. Learn why the menu can be missing, what each field means and how to reset it.

Check if an iPhone is genuine before you buy. Use the serial number on Apple's Check Coverage page, match the IMEI, review Parts and Service History and check Activation Lock.

Turn data roaming on or off on iPhone in Settings › Cellular › Cellular Data Options. Check your plan first to avoid charges, and fix roaming when it will not connect.

Change how long your iPhone screen stays on before it locks. Use Auto-Lock, fix it when it is greyed out or stuck at 30 seconds, and keep the screen on longer.

The iPhone Camera app has no shutter speed dial. Learn how to get a longer exposure with Night mode, Live Photo Long Exposure or a manual camera app.

Find apps you deleted from your iPhone. There is no Recently Deleted folder for apps, but the App Store keeps a list you can reinstall from in seconds.

Find Location Services on your iPhone: Settings, Privacy & Security, Location Services. Turn it on or off, choose which apps see your location and fix it when it is greyed out.

How to add a line to your phone plan on Verizon, AT&T or T-Mobile. See the steps, the fees people forget and how to bring your own phone or move a number in.

How to buy a used phone without getting a locked, stolen or worn-out one. Follow a 10-point checklist for IMEI, unlock status, battery, payment and returns.

How to check if your phone is being tracked: review location sharing, apps and profiles, run Safety Check and learn what to do safely if you find something.

How to check phone warranty status in under a minute. Look up your iPhone, Samsung or Pixel by serial number or IMEI and learn what the warranty really covers.

How to choose a cell phone plan in 7 steps: check coverage, measure your data, compare real monthly costs, read the fine print and test before you commit.

How to find IMEI number on any phone: dial *#06#, check Settings, the SIM tray, the box or your account. Includes dual SIM, eSIM and dead phone methods.

How to find your phone number on iPhone and Android in seconds. Check Settings, Contacts, your carrier app or a quick call, and fix a number that shows Unknown.

Find every iPhone display setting in one place: brightness, Auto-Lock, text size, color filters, wallpaper, app icons, rotation, Home button and iPhone name.

Change iPhone keyboard settings fast: turn off autocorrect, add a keyboard, edit a contact, rename a group chat and hide or change your caller ID on any iOS.

Change iPhone region settings in one guide: App Store country, phone number, in-app purchases, Maps voice, miles or kilometers and which apps see your location.

Change iPhone Safari settings in one place: default browser, search bar position, SafeSearch, autofill address, DNS and IP address, for iOS 18 and iOS 26.

Change iPhone sound settings in one place: text tones, vibration, quiet alerts, voicemail ring time and alarm snooze, with steps for iOS 26 and older.

What to do if your phone is stolen: lock it, track it, call your carrier, protect your accounts and file a police report. Steps for iPhone and Android.

How to recover data from a dead phone, starting with free options. Check cloud backups, try a charge and force restart, and know when a lab is worth paying.

How to remove a SIM card in under a minute. Find the tray, eject it with a pin and put it back correctly. Covers iPhone, Samsung, Pixel and stuck trays.

How to sell your Android phone safely: back up, remove your accounts, factory reset, check unlock status and pick a trade-in or private sale.

How to sell your iPhone the safe way: back up, sign out, erase, then pick trade-in or a private sale. Includes Activation Lock fixes and scam warnings.

How to set up two factor authentication for Apple, Google and other accounts. Compare text codes, authenticator apps and passkeys, and save backup codes first.

A SIM swap scam lets a criminal take over your phone number and reset your accounts. Learn the warning signs, what to do first and how to lock down your number.

How to tell if a text is a scam: 8 warning signs, common scam types, what to do if you clicked a link and how to report scam texts on iPhone and Android.

How to trade in your phone for the most value. Compare Apple, Samsung, carriers and retailers, learn how bill credits work and avoid the common trade-in traps.

How to use your phone in Canada without surprise charges. Check if your US plan includes Canada, set up roaming and avoid border tower traps.

How to use your phone in Europe without surprise charges. Compare carrier plans, day passes, travel eSIMs and local SIMs, then set up your phone.

How to cancel phone service with Verizon, AT&T or T-Mobile: when not to cancel, what you still owe, one line on a family plan, and how to avoid surprise fees.

Check if your phone is compatible with a carrier using its free IMEI checker. Learn why phones fail: carrier lock, missing bands or no VoLTE, and what to do.

How much is your iPhone worth in 2026? See Apple’s current trade-in values, how to check your exact price, and how to get more by selling it yourself.

Lower your phone bill with 12 proven ways: right-size your plan, use autopay discounts, remove add-ons, ask for loyalty deals or switch to cheaper prepaid.

Get a number transfer PIN to switch carriers: steps for Verizon, AT&T, T-Mobile and prepaid brands, where to find your account number and fixes if a port fails.

Switch phone carriers without losing your number: check your phone is unlocked, get your account number and transfer PIN, and let the new carrier move the line.

Transfer your eSIM to a new iPhone with eSIM Quick Transfer, from an Android phone or with your carrier if the old phone is lost. Verizon, AT&T and more.

What carrier is my phone? Find the carrier your phone uses or is locked to in Settings, with the Samsung CSC code, the IMEI or the box, all free and in minutes.

Learn how to check if a phone is stolen before you buy it. Run a free IMEI check, spot Activation Lock and unpaid balances, and avoid used phone scams.

How to use your phone in Mexico without a surprise bill. See what Verizon, AT&T and T-Mobile include, when to buy a pass or eSIM, and settings to check first.

How do I know if my phone is unlocked? Check in Settings on iPhone, Samsung or Pixel, test a SIM or eSIM, and see the 2026 Verizon, AT&T and T-Mobile rules.

Learn how to turn off call screening on iPhone so unknown callers ring normally again. Covers Ask Reason for Calling, call filtering and carrier spam apps.

Learn how to turn off Liquid Glass on iPhone as far as Apple allows. Use the iOS 27 slider, Tinted mode and Reduce Transparency to make menus solid and clear.

Back up your Android phone to Google with Google One, back up photos with Google Photos, or use Samsung Cloud, Smart Switch or a computer. Step by step.

Block a number on your Android phone from Recents or Phone settings on Samsung and Pixel. Also how to block texts, add a number by hand and unblock later.

Block a number on iPhone from Recents, Messages or Settings, see what happens to their calls and texts, and how to find blocked voicemails or unblock later.

Block spam calls on Android with Samsung Caller ID and spam protection or the Google Phone spam filter and Call Screen, plus free carrier tools that help.

Think someone blocked you on iMessage? Check for no Delivered status, blue bubbles turning green and calls going straight to voicemail, plus other causes.

Cancel subscriptions and free trials on Android in the Play Store, find ones that do not show up, and learn why deleting the app does not stop the charges.

Cancel subscriptions on your iPhone in Settings › your name › Subscriptions. Find ones billed outside Apple, cancel free trials in time and ask for a refund.

Change your default keyboard on Android, switch Samsung Keyboard to Gboard or back, and change the keyboard size, theme and language in a few taps.

Forgot your Screen Time passcode? Reset it in Settings with the Apple Account that set it up, or from a parent’s iPhone for a child. No erase needed.

Check your iPhone for a virus or malware: spot the real warning signs, remove unknown profiles and apps, clear Safari data and update iOS. No paid app needed.

Connect AirPods to your iPhone in seconds with the setup card, or pair them manually in Bluetooth settings. Also how to connect AirPods to a new iPhone.

Connect your iPhone to a TV wirelessly with AirPlay screen mirroring, or with an HDMI adapter. Works with Apple TV and many Samsung, LG, Roku and Vizio TVs.

Connect Galaxy Buds to your iPhone through Bluetooth in under a minute. How to put each model in pairing mode, which features work and the Galaxy Buds app.

Delete all emails from one sender in Gmail at once on a computer, or in the phone app. Plus a filter that trashes their future emails automatically.

Download all your iCloud photos to a PC, Mac or iPhone. Use iCloud.com in batches of 1,000, iCloud for Windows, or request a full copy from Apple.

Find a lost Android phone with Google Find Hub at android.com/find, or Samsung SmartThings Find. Ring it, see it on a map, lock it or erase it from any device.

Find your lost iPhone with Find My on another Apple device or at icloud.com/find from any phone. Play a sound, see its last location and turn on Lost Mode.

Forward calls on iPhone in Settings › Apps › Phone › Call Forwarding, or dial *72 on Verizon and other carriers. Also how to forward only missed calls.

Forward calls on your Samsung Galaxy from the Phone app settings: always, when busy, unanswered or unreachable. Plus carrier codes and how to turn it off.

Forward a text message on iPhone, Samsung or Pixel in a few taps, forward several messages or photos at once, and send a text to an email address.

Hide apps on Android from the home screen, or lock them away in Samsung Secure Folder or Pixel Private space. Plus how to find and unhide them later.

Hide apps on iPhone in the locked Hidden folder, or just remove them from the Home Screen. Also how to find hidden apps and hide App Store purchases.

Make your iPhone take JPG photos instead of HEIC with one setting, and convert photos you already have to JPG for free with the Files app. No extra app needed.

Convert one or several photos to a PDF on iPhone for free with the Files app or the Print menu, combine pages in order, and save or share the PDF.

Delete hidden apps on your iPhone from the Hidden folder in App Library, Search or iPhone Storage. Also how to find apps hidden by Screen Time restrictions.

Change any album cover in the iPhone Photos app with Make Key Photo, plus which albums cannot be changed and what to do if the cover will not update.

Make iPhone Mail delete emails instead of archiving them for Gmail and other accounts, with one account setting. Plus the same fix in the Gmail app.

Change your Gmail password on iPhone in the Gmail app or Safari, then update it in iPhone Mail so email keeps arriving. Plus what to do if you forgot it.

Change your Instagram password on iPhone in Accounts Center, reset it if you forgot the old one, and log out every other device so nobody else stays signed in.

Record a new voicemail greeting on your iPhone in the Phone app, switch back to the default greeting, or change it by calling voicemail if your carrier needs.

Change your home Wi-Fi password from your iPhone with the router app or admin page, update a saved Wi-Fi password, or change your Personal Hotspot password.

Call 911 from any iPhone, even locked or with no signal: tap Emergency on the lock screen, use the Emergency SOS slider, or press the side button five times.

Set up an AirTag with your iPhone in under a minute, name it, and use Find My to ring it, get Precision Finding directions or put it in Lost Mode.

Turn 5G off on your iPhone to save battery or fix a weak signal, switch to LTE, or turn 5G back on. Learn what 5G Auto, 5G On and the network icons mean.

Lock your iPhone screen from touch while a child watches a video. Turn on Guided Access, triple click the side button, switch Touch off and tap Start.

Lock your Android screen to one app before handing it to a child. Turn on app pinning, pin YouTube Kids or a game, and require your PIN to unpin it.

Print text messages from your Android phone for free with scrolling screenshots, Google Messages for web, or an export app that keeps names and dates for court.

Print text messages from your iPhone for free with screenshots and AirPrint, save them as a PDF, or export whole conversations with dates for court.

Recover deleted photos on iPhone from Recently Deleted, iCloud.com or a backup, and learn your honest options after 30 days before paying for recovery software.

Recover deleted texts on Android from the Trash in Google Messages or Samsung Messages, the Archived and Spam folders, or a Google or Samsung Cloud backup.

Recover deleted text messages on iPhone from the Recently Deleted folder in Messages, another Apple device or a backup. What works, and what does not.

Forgot your iPhone passcode or see iPhone Unavailable? Reset it from the Lock Screen, with iCloud Find My or a computer, then restore your data from a backup.

Restore your apps, texts, contacts and settings from a Google backup while setting up a new or reset Android phone. Works across brands, step by step.

Scan your Android phone for malware for free with Google Play Protect or Samsung Device protection, then remove bad apps in safe mode. No extra app needed.

Scan documents on your iPhone for free with the Notes or Files app, add several pages, save them as a PDF and sign it. No scanner app or scanner needed.

Scan a QR code with your iPhone or Android camera in seconds, scan one from a photo or screenshot, and fix a camera that will not read QR codes.

Schedule a text on iPhone with Send Later in Messages, up to 14 days ahead. Plus how to edit or cancel it, and a Shortcuts trick for regular SMS texts.

Take a screenshot on any Android phone with Power and Volume Down, plus Samsung’s palm swipe, Motorola’s three finger swipe and long scrolling screenshots.

Take a screenshot on any iPhone with the right buttons, without buttons using Back Tap, or capture a full web page. Plus where your screenshots are saved.

Take a screenshot on any Samsung Galaxy with Power and Volume Down, a palm swipe or Bixby, and capture long pages with Scroll capture. Settings included.

See the password of any Wi-Fi network your iPhone has joined, in Settings or the Passwords app, and share it with friends nearby without typing it.

Set up Android Auto for the first time with a USB cable or wirelessly, grant the right permissions, and customize which apps show on your car’s screen.

Set up an iPhone for your child with Family Sharing: create a child Apple Account, turn on Ask to Buy, Screen Time limits, content filters and location sharing.

Set up voicemail on any Android phone by pressing and holding 1, creating a PIN and recording a greeting. Plus visual voicemail on Samsung and Pixel.

Set up voicemail on your iPhone with Set Up Now in the Phone app, pick a password and record a greeting. Plus what to do when the Set Up Now button is missing.

Share your live location from an Android phone with an iPhone user using Google Maps or Find Hub, for an hour or until you turn it off. No extra app needed.

Share your location on iPhone for an hour, a day or forever using Messages, Find My or Maps. Also how to share with an Android user and how to stop sharing.

Move contacts, photos, messages and apps from iPhone to Android with Google’s Android Switch or Samsung Smart Switch, and turn off iMessage so texts arrive.

Move everything from your old Galaxy to a new one with Smart Switch, wirelessly or with a cable. Includes what does not transfer and how to fix a stuck copy.

Move everything to your new iPhone with Quick Start, an iCloud backup or a computer. Keeps apps, photos, messages and settings, plus your eSIM and WhatsApp.

Stop your iPhone calling 911 by accident: turn off Call with Hold and Release, Call with 5 Button Presses and Crash Detection in Settings › Emergency SOS.

Turn off Screen Time on your iPhone in a few taps, reset a forgotten Screen Time passcode with your Apple Account, or turn it off for a child from your phone.

Forgot your Android PIN or pattern? Try Samsung’s previous PIN option and Smart Lock first, then reset with Find Hub or recovery mode and restore your backup.

Check if your iPhone is carrier locked in Settings, then ask your carrier to unlock it for free. Covers Verizon, AT&T and T-Mobile rules and what to do next.

Update your Android phone in Settings on Samsung, Pixel, Motorola and others, plus Google Play system updates, and what to do when no update shows up.

Update your iPhone to the latest iOS over Wi-Fi or with a computer, turn on automatic updates, and fix an update that is not showing or will not install.

Send a voice message on iPhone from the plus menu in Messages, review it before sending, and stop audio messages from disappearing after 2 minutes.

Turn on Wi-Fi Calling on your iPhone in Settings › Cellular, add your emergency address, and fix it when the option is missing or calls still drop.

Back up your iPhone to iCloud or a Mac or Windows PC step by step, see what a backup includes, and get free temporary iCloud storage for a new iPhone.

Stop spam and robocalls on your iPhone. Use Screen Unknown Callers in iOS 26, block numbers, turn on your carrier’s free spam filter and 3 more methods.

Switch iMessage to text message on iPhone, or get green texts to send as blue iMessages again. Steps for one message, automatic fallback and turning iMessage on or off.

Change print size on iPhone: pick the paper size in the Print menu, print photos smaller, or use your printer's app to scale. Steps for HP, Canon and Epson.

Clear cache on your iPhone to free space and fix slow apps. Clear Safari and Chrome data, offload apps and use in-app cache buttons, step by step.

Factory reset a Google Pixel, Motorola or other Android phone from Settings or with the buttons. Back up first and avoid the Google lock after the reset.

How to factory reset an iPhone from Settings or a computer, plus the checklist to follow first so you keep your data and the next owner can use it.

Factory reset your Samsung Galaxy from Settings or with the buttons in recovery mode. Back up first and avoid the Google lock that stops the next owner.

Change your iPhone alarm sound to a new tone or a song in the Clock app, set the alarm volume and vibration, and fix an alarm that makes no sound.

Change your iPhone camera aspect ratio to 16:9, 4:3 or square, pin the control to the top bar in iOS 27, keep it as default, and reshape photos you took.

Change Do Not Disturb on iPhone: turn it on or off, let family and repeated calls through, set a schedule, and stop it from turning on by itself.

Change what appears in Featured Photos and the Photos widget on iPhone. Remove photos, feature people less, favorite the ones you want or turn it off.

Change headphone settings on iPhone: tune the sound with Headphone Accommodations, fix left and right balance, limit loud audio and set AirPods controls.
Change your iPhone avatar: the Apple Account photo in Settings and the Contact Photo and Poster people see when you call. Use a photo, Memoji or initials.

Update the card or PayPal used for App Store purchases and subscriptions on iPhone, fix declined payments and billing alerts, and see how Family Sharing works.

Every iPhone screenshot setting and option: turn off iOS 26 full-screen previews, pick PNG or HDR, use Back Tap, and what older iPhones like the X can change.

Change your iPhone password (the passcode you unlock it with) in Settings, choose a 4 or 6 digit or letter code, and learn what to do if you forget it.

Learn how to use AirDrop on iPhone to send photos, videos and files, change who can send to you, use AirDrop codes, and share with Android phones.

Restore your iPhone from an iCloud or computer backup step by step, including how to do it after setup, which backup to choose and how long it takes.

Screen record on your iPhone in seconds. Add the button to Control Center, record your voice with the microphone, and find and trim your video in Photos.

Screen record on your Samsung Galaxy with the built-in Screen recorder. Record sound or your voice, add a selfie video and find your recording in Gallery.

Get a still photo from a video on iPhone: use Save Video Frame as Photo in iOS 27, take a clean screenshot, pick a Live Photo frame, or export it on a Mac.

iPhone not changing time zones when you travel? Turn on Set Automatically, enable the hidden Setting Time Zone switch and try 4 more fixes, or set it by hand.

Move contacts, photos, messages and WhatsApp from Android to iPhone with Apple’s free Move to iOS app, plus free ways to transfer after your iPhone is set up.

Move contacts from a Jitterbug Smart or Jitterbug Flip to an iPhone. Use Move to iOS, sync with Google, or copy them over when you have a Flip phone.

Transfer photos from iPhone to PC in minutes. Use a USB cable, File Explorer or iCloud on Windows 10 or 11, and fix HEIC photos that will not open.

Holding the side button on your Samsung opens Bixby instead of turning it off? Here are 4 ways to power off a Galaxy, and how to make the button work normally.
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