How to Lock a Lost or Stolen Samsung Phone Remotely

Quick Answer: Open Samsung Find or SmartThings Find , sign in with the Samsung Account used on the lost Galaxy, select the device, and choose Lock or Lost mode , depending on the interface. Add a recovery PIN, contact number, and message when the option is available. If Samsung's services cannot reach the phone, open Google Find Hub and choose Mark as lost .

Safety warning: If the map suggests that the phone was stolen, do not go to the location yourself. Save the location and time details, then contact local law enforcement.

Quick Emergency Checklist

1. Use Samsung Find or SmartThings Find to check the phone's location.
2. If the phone may be nearby, make it ring before taking stronger action.
3. Use Lock to create a four-digit recovery PIN and show a contact message.
4. If Samsung's services are unavailable, use Google Find Hub and choose Mark as lost .
5. Contact the mobile carrier to suspend the SIM or eSIM and ask about IMEI blocking.
6. For suspected theft, save screenshots and contact the police. Do not confront anyone yourself.
7. Review Samsung, Google, email, banking, and payment-account security.
8. Erase the device only when recovery is unlikely and protecting the data is more important than continued tracking.

Which Lost-Phone Tool Should You Use?

Tool	Use It When	Main Actions
Samsung Find	The lost Galaxy is registered to your Samsung Account	Locate, ring, track, use Lost mode, show a message, extend battery life, or erase supported devices
SmartThings Find	You already use Samsung's SmartThings ecosystem or the phone appears there	Locate, ring, track, lock, extend battery life, or erase supported Galaxy devices
Google Find Hub	The phone is linked to your Google Account and Google's lost-device service is available	Locate, play sound, mark as lost, show contact details, view IMEI, or factory reset
Mobile carrier	You need to stop calls, messages, mobile data, SIM or eSIM use, or network access	Suspend service and consider IMEI blocking according to carrier policy
Police	The device appears stolen or the location is unsafe	Handle recovery and document the theft using location records, IMEI, serial number, and proof of purchase

Samsung Find and SmartThings Find are separate Samsung services. Available controls can differ by device model, software version, carrier, account configuration, and region.

Method 1. Lock the Phone with Samsung Find or SmartThings Find

Samsung's current lost-Galaxy instructions explain that Samsung Find and SmartThings Find can locate, ring, lock, track, extend battery life, or erase a registered Galaxy phone or tablet. Available screens and controls vary by device, software version, carrier, and region.

Requirements

• The Galaxy phone or tablet is registered to a Samsung Account.
• The device is powered on. If it is off, only its last known location may be available.
• The device can connect to a stable network for live remote actions.
• Remote controls were enabled. Samsung says this is normally enabled when a Samsung Account is added.
• For better recovery chances, Send last location and Offline finding were enabled before the loss.

On recent Galaxy software, the settings may appear under Settings > Security and privacy > Lost device protection > Find My Mobile . Menu names vary by One UI version and region.

Locate or Ring the Phone

1. Open Samsung Find or SmartThings Find in a browser.
2. Sign in with the Samsung Account used on the missing phone.
3. Select the Galaxy device from the list.
4. Check the location and last update time.
5. If the phone may be nearby, choose Ring . Samsung says it rings for one minute even when set to Mute or Vibrate.
6. If available, use Track location for periodic location updates or Notify me when it's found .

Turn On Lock or Lost Mode

1. Select the missing device, then choose Lock or Lost mode, depending on the interface.
2. Choose Lock , then select Next .
3. Create a four-digit PIN and enter it twice.
4. Add an emergency contact and lock-screen message when available.
5. Select Lock . The device remains locked until the correct PIN is entered.

Samsung says Lost mode on supported devices can restrict access to Samsung Pay and Samsung Pass and can prevent the phone from being turned off. Exact behavior varies by device, software version, account, and region.

Save the PIN somewhere secure. Do not place sensitive information, your home address, or another account password in the lock-screen message.

Method 2. Lock the Samsung Phone with Google Find Hub

If Samsung's services are unavailable, use Google's Find Hub instructions . Google currently calls the lost-device service Find Hub rather than Find My Device. For a separate walkthrough, see the Google Find Hub guide .

Requirements

• The phone has power.
• It is connected to mobile data or Wi-Fi.
• It is signed in to your Google Account.
• Find Hub is enabled.
• The phone is visible in Google Play.

Mark the Phone as Lost

Mark as lost locks the phone with its existing PIN, pattern, or password and lets you add contact information and a message to the lock screen.

1. Open Google Find Hub on another device or in a browser.
2. Sign in with the Google Account used on the missing Galaxy.
3. Select the phone.
4. Review the available location and last-seen information.
5. Choose Mark as lost and follow the prompts to secure the device.
6. Add a contact number or message that can help an honest finder return it.

Find Hub can also play a sound. Do not use a location result as a reason to confront a suspected thief.

Can You Track or Block a Lost Samsung Phone by IMEI?

You normally cannot enter an IMEI into a public website and track the phone yourself. The IMEI identifies the cellular device and is mainly useful to the mobile carrier and law enforcement.

Find the IMEI

• Open the missing phone in Google Find Hub and select its settings.
• Check the original box, receipt, carrier account, or device purchase records.
• Review your Samsung or Google device information when the IMEI is shown.

Contact the Carrier

Contact your current carrier through its official app, website, store, or verified support number. Ask the carrier to:

• Suspend the physical SIM or eSIM.
• Prevent unauthorized calls, messages, and mobile data use.
• Issue a replacement SIM or eSIM when appropriate.
• Explain whether it can block or blacklist the device IMEI on supported networks.

IMEI blocking does not erase the phone, remove local files, or guarantee that the device cannot be used on Wi-Fi or on every network worldwide.

What to Do If the Samsung Phone Was Stolen

Contact the Police

Save screenshots of the map, last known location, device name, time, IMEI, and serial number. Provide these details, proof of purchase, and the carrier report to local law enforcement.

Do Not Visit the Location Yourself

Samsung specifically warns users not to go directly to a location shown for a stolen device. A location estimate may be delayed or imprecise, and confronting a suspected thief can be dangerous.

Protect Important Accounts

• Review recent Samsung Account and Google Account activity.
• Change passwords when the phone cannot be locked or erased remotely.
• Contact banks, card issuers, and mobile-payment providers when financial data may be exposed.
• Revoke unfamiliar sessions and remove unknown recovery methods.
• Warn contacts if the thief may be able to send messages from your accounts.

Changing the Samsung Account password signs that account out on connected devices, which can protect account access but may also affect your ability to use Samsung's remote services. Try locating and locking the phone first when it is safe to do so.

When Should You Erase the Phone Remotely?

Remote erase is the last resort. Use it when recovery is unlikely and the risk to personal, work, or financial data is greater than the value of continued tracking.

Before Erasing	Why It Matters
Try locate, ring, track, and lock first	You may still recover the phone without losing data
Save location and device details	The information may help the carrier, insurer, or police
Confirm available backups	A factory reset permanently removes local data
Understand tracking consequences	After a completed erase, continued location tracking may stop
Remember Google device protection	The recovered phone may require a previously synced Google Account during setup

Erase with Samsung Find or SmartThings Find

1. Select the device.
2. Choose Erase data .
3. Sign in again if Samsung requests account verification.
4. Read the warning, then select Erase .

Samsung's current Canadian support guidance says its remote reset also erases an installed SD card. Because behavior and available options can vary by model and region, read the warning shown for your device before confirming Erase data.

Factory Reset with Google Find Hub

1. Select the missing phone in Find Hub.
2. Open the device settings.
3. Choose Factory reset [device name] .
4. Review the warning and confirm.

Google notes that removable SD card data may not be erased. After the reset completes, Find Hub can no longer locate the phone. Android may require a Google Account previously added and synced to the phone before it can be used again.

What If the Phone Is Offline, Powered Off, or Not Listed?

Problem	What It Means	What to Do
The phone is powered off	Live commands cannot reach it	Check the last known location, enable found notifications when available, and wait for it to reconnect
The phone is offline	Lock or erase commands may remain pending	Keep the device selected and monitor both Samsung and Google services
The device is missing from Samsung Find	The Samsung Account, remote controls, model, or region may not support the service	Try SmartThings Find, Google Find Hub, the carrier, and police
The device is missing from Find Hub	The wrong Google Account may be selected, Find Hub may be disabled, or the phone may not be visible in Google Play	Check other Google Accounts and review the account's device list
The location is old or imprecise	The phone may be offline or the location estimate may be delayed	Do not assume the marker identifies a specific person or room; provide the details to authorities
Remote erase cannot be completed	The device cannot currently receive the command	Change important account passwords and continue working with the carrier and police

What to Do After You Recover the Phone

1. Unlock a Samsung-locked device with the four-digit PIN you created remotely.
2. Check the device for physical damage, an unfamiliar SIM, unknown apps, or changed security settings.
3. Review Samsung, Google, email, banking, and social-account activity.
4. Change passwords and revoke unfamiliar sessions if another person may have accessed the phone.
5. Confirm that Offline finding, Send last location, Find Hub, a strong screen lock, and account recovery methods are enabled.
6. Back up important data and store the IMEI and serial number somewhere separate from the phone.

If you recovered the phone but cannot access it because of a separate screen-lock issue, review Samsung remote unlock options . Do not remove the screen lock while the phone is still missing.

FAQs About Locking a Lost Samsung Phone

Can I lock a Samsung phone remotely if it is offline?

The lock command normally needs the phone to reconnect to a network. Samsung may show a last known or offline-found location when the related options were enabled beforehand, but live remote actions can remain pending until the phone comes online.

What if I did not enable Samsung Find before losing the phone?

Try Google Find Hub if the Galaxy had a Google Account and Find Hub was enabled. Also contact the carrier to suspend the SIM or eSIM, ask about IMEI blocking, and report suspected theft to local police.

Is Samsung Find the same as SmartThings Find?

No. Samsung currently provides Samsung Find and SmartThings Find as separate services. Both can locate and protect supported Galaxy devices, but the available controls can differ by app, website, device model, software version, account, and region.

Can I track a Samsung phone by IMEI myself?

No. An IMEI is not a public tracking code. Give it to your carrier or law enforcement. The carrier may use it to identify or block the device on supported mobile networks.

Will remote Lock or Lost mode erase the phone?

No. Lock or Lost mode secures the screen and can display contact information. Erase data or Factory reset is a separate action that deletes local data.

Should I erase the phone immediately?

Usually not. First try locating, ringing, locking, contacting the carrier, and reporting the theft. Erase only when recovery is unlikely and protecting the data is more important than continued tracking.

What happens if I recover the phone after remotely erasing it?

The phone must be set up again. Google device protection may require a Google Account previously added and synced to the device, so make sure you can recover that account.

Can someone turn off a Samsung phone after I lock it remotely?

Samsung says Lost mode can prevent a supported phone from being turned off. Availability and behavior vary by device, software version, account, and region, so do not rely on this control alone. Continue monitoring the location, contact the carrier, protect important accounts, and involve police when theft is suspected.

The Bottom Line

Use Samsung Find or SmartThings Find first to locate and lock a missing Galaxy. Google Find Hub is the main backup option. Then suspend the SIM or eSIM, document the IMEI, protect important accounts, and contact police if theft is suspected.

Remote erase should be the final step because it deletes data and can end continued tracking. Never go to a suspected thief's location yourself.