Understand the difference between erasing and unlocking
Erasing a device deletes its local contents and returns its software to a setup state. An activation lock is different: it ties the device to an account and can stop someone else from setting it up after the erase. Apple’s Activation Lock and Android’s factory reset protection are examples. A device can look empty yet still ask its new owner for your account credentials.
The safest approach is to make the device ready for transfer while you still have it, can unlock it, and can access its account settings. Menu names vary by model and software version, but the order is consistent: save your data, turn off account-linked protections, erase, then inspect the result. Do not give a buyer your password as a workaround.
Back up what you want to keep
Before changing account settings, confirm that your photos, contacts, files, messages, and other important data are available elsewhere. Check the backup rather than assuming it completed: open a few files on another device or verify that a recent backup appears in the service you use. If you rely on an authenticator app, check its transfer or recovery options before wiping the old device. Also move anything stored only in a downloads folder, notes app, or removable card.
Remove physical items you are not selling, such as a SIM card, memory card, case, or security key. If the device uses an eSIM, follow your carrier’s instructions for moving service and choose the option to delete the eSIM from the old device when appropriate. Unpair accessories you plan to keep, especially a smartwatch whose handoff process may have its own lock-removal steps.
Remove account-linked locks before the reset
On an iPhone or iPad, follow Apple’s transfer or sign-out steps in Settings before erasing. This includes signing out of your Apple Account and turning off Find My when prompted; you may need your account password. An Apple Watch should be unpaired using the normal process before it changes owners. On a Mac, follow the sign-out and erase options offered for your model, paying particular attention to Find My and Activation Lock. If an organization manages an Apple device, ask its administrator to release it rather than attempting to sell it as a personal device.
On an Android phone or tablet, remove your Google account from the device’s settings before performing a factory reset through Settings. This helps prevent factory reset protection from asking the next owner for an account previously used on it. Also check for a manufacturer account, such as a Samsung account, and follow its sign-out instructions. Avoid resetting through recovery buttons as your first choice when you can still use Settings; a reset alone may leave account verification in place.
For a Windows laptop or other computer, sign out of accounts and use its built-in reset or erase process, choosing the option that removes your files. If available, choose the more thorough drive-cleaning option for a device you are handing to someone else. Check whether it is enrolled in workplace or school management: erasing it does not necessarily remove that enrollment. The same caution applies to managed Chromebooks and tablets.
Erase the device and check the handoff screen
Once accounts and locks have been addressed, use the device’s built-in erase or factory-reset command. Keep it charged or plugged in and let the process finish. If you are selling a computer with more than one internal drive, confirm that the reset covers every drive containing your data. A removable drive should be taken out or erased separately if it is part of the sale.
When the device restarts, look for its initial language or welcome screen. You can proceed just far enough to check whether it requests a previous owner’s account, then stop before setting it up under your account again. Some checks require a network connection. If the device still asks for your credentials, resolve that while it remains in your possession. Do not advertise it as ready to use merely because the screen shows no personal files.
Finish the account cleanup without losing your fallback
After confirming the erase, review the devices listed in your Apple, Google, Microsoft, or manufacturer account. Remove the old device where the service offers a handoff or removal option, and check that it no longer appears as a trusted device for sign-in. The exact controls differ, so read each prompt: remotely erasing a device and releasing an activation lock are not always the same action.
If the device is already gone and the buyer reports an account lock, use the account provider’s official removal process or contact its support with any proof of purchase you have. Never send a password or verification code to the buyer. Keeping the device until you have seen a clean setup screen is simpler than trying to fix a locked handoff afterward.
