Use your phone's built-in location service before anything else
Every smartphone has a way to find itself, and it works even when your phone is off or the screen is locked. On an iPhone, you use Find My iPhone through iCloud.com or another Apple device. On Android, you use Find My Mobile through Google's website or Samsung's SmartThings app, depending on your phone's brand. These services show your phone's location on a map in real time, let you play a sound to help you locate it nearby, and let you lock or erase it remotely if it's truly gone.
The catch is that you have to set this up before you lose your phone — it takes five minutes and you cannot turn it on after the phone disappears. If you have not done this yet, set it up now on any device you own, because the moment you need it is the moment you will wish you had.
Key Takeaways
- Find My iPhone and Find My Mobile work even when your phone is off, locked, or in airplane mode, but only if you set them up before you lose it.
- Your phone's location appears on a map through iCloud.com (Apple) or Google's Find My Mobile (Android), and you can trigger a loud alarm from there.
- If your phone is truly stolen and you cannot recover it, you can erase it remotely to prevent someone else from accessing your accounts and data.
- Contact your phone carrier when ready after you cannot find your phone, because they can disable the SIM card and prevent someone from using your phone number.
Finding your iPhone through iCloud
Go to iCloud.com from any computer or another person's iPhone and sign in with your Apple ID and password. Click Find My iPhone (or Find My on newer versions). A map appears showing all your Apple devices — your iPhone will show as a green dot if it has power and a connection. Click your iPhone's name to see options: you can play a sound, mark it as lost, or erase it.
If your phone is nearby, the sound option is the fastest way to find it — it plays at full volume even if your phone is on silent. If you cannot find it after searching your home and car, mark it as lost instead. This locks your phone with a passcode, displays a message on the lock screen with your contact number, and stops it from syncing your data to iCloud until you unlock it again.
Erase iPhone is the last resort. It wipes all your data from that device, but your data is still safe in iCloud — you can restore it to a new phone later. Do not erase until you are certain you will not find it, because once you do, you cannot use Find My to locate it anymore.
Finding your Android phone through Google or Samsung
For most Android phones, go to google.com/android/find from any computer and sign in with your Google account. Your phone appears on a map if it has power and a connection. You can play a sound, lock it with a new PIN, or erase it — the same three options as iPhone.
If you have a Samsung phone, you can also use SmartThings Find through the SmartThings app on another device or through samsung.com/us/support/find. Samsung's version sometimes locates phones more accurately because it uses Bluetooth signals from other Samsung devices nearby, not just your phone's own connection. You can use both Google's and Samsung's services at the same time — whichever one finds your phone first is the one you use.
Like iPhone, the sound option works best if your phone is somewhere in your home or car. Lock it if you think it is stolen. Erase it only when you are sure it is gone for good.
What to do if your phone has no power or connection
If your phone is off or has no internet, the location services cannot find it right now, but they can still help. Most phones show their last known location — the spot where they were when they last connected. This is often enough to narrow down where to search, especially if you lost it recently.
Set a time to check again in a few hours. If someone stole your phone and turned it off, they will likely turn it back on eventually to use it or sell it. The moment it connects, you will see its new location. In the meantime, move to the next step: contact your carrier.
Contact your phone carrier to disable your SIM card
Call your carrier — Verizon, AT&T, T-Mobile, or whoever you pay for service — and tell them your phone is lost or stolen. They can disable your SIM card when ready, which stops anyone from using your phone number to make calls, send texts, or use data. This is critical because someone with your phone number can reset passwords on your email and bank accounts.
Your carrier can also tell you whether your phone has connected to their network since you lost it, which sometimes gives you a location more precise than what Find My shows. They may also be able to send a remote command to your phone if it is on their network, though this varies by carrier.
Ask your carrier to send you a replacement SIM card so you can use your phone number on a different device while you search. This takes a few days but keeps your number active and prevents someone else from claiming it.
Reporting a stolen phone to police and your bank
If you believe your phone was stolen rather than lost, file a report with your local police department. You do not need to do this in person — most departments let you file online or by phone. Have your phone's serial number ready (you can find it on your original receipt or in your carrier's account). The police report gives you documentation if you need to claim it as a loss on insurance or dispute charges someone made with your accounts.
Contact your bank and any other financial institutions where you have apps on your phone. Tell them your phone is lost or stolen and ask them to watch for suspicious activity. Many banks can temporarily lock your account or require extra verification for large transactions. Change your passwords from a computer you trust, not from a borrowed phone, because malware on the borrowed device could capture your new passwords.
Setting up Find My before you need it
On iPhone, go to Settings, tap your name at the top, then tap Find My. Turn on Find My iPhone and Find My network. This takes two minutes and works even if someone steals your phone and turns it off.
On Android with a Google account, go to google.com/android/find and sign in. Your phone is automatically registered. On Samsung phones, open the SmartThings app, tap Devices, select your phone, and turn on Find Mobile Device. Again, this is a two-minute setup that you do once and never think about until you need it.
Write down your phone's serial number (found in Settings under About Phone) and keep it somewhere safe, like a photo in your email or a note in your password manager. If your phone is stolen, you will need this number to file a police report and to prove ownership to your carrier.
Frequently Asked Questions
Can I find my phone if someone turned it off?
Yes, but only after they turn it back on. Find My services show your phone's last known location while it was off, and the moment it connects to the internet again, you will see its new location. Some phones also have a feature that keeps location services running even during shutdown — check your phone's settings to see if this is turned on.
What if I do not remember my Apple ID or Google password?
You can reset your password on the login page itself — click "Forgot password" and follow the steps to verify your identity through email or a recovery phone number. Do this from a computer or another person's device before you lose your phone, so you know the process works. If you cannot reset it, you cannot use Find My, which is why setting it up now matters.
Will Find My work if my phone is in airplane mode?
No, airplane mode turns off all wireless connections, so your phone cannot send its location. However, if someone stole your phone, they will likely turn off airplane mode to use it. The moment they do, you will see its location on the map.
Can I find my phone if someone put it in a Faraday bag or metal box?
No, metal and certain materials block wireless signals completely. If your phone is shielded this way, Find My cannot locate it until it is removed from the shield. This is rare in real theft situations — most people who steal phones want to use them, not hide them from location services.
What happens to my data if I erase my phone remotely?
On iPhone, your data is safe in iCloud, so you can restore it to a new phone later. On Android, your data is safe in Google Drive and your Google account. The erase only removes data from that specific device. After you erase, you cannot use Find My to locate that phone anymore, so erase only when you are certain it is gone.