How to Clean Data Off a Traded-In Phone Safely
Back up your phone, sign out, run factory erase, and pull SIM and memory cards before trade-in.
To clean data off a traded-in phone safely, back up your files to your new device, sign out of your accounts, then run a full device erase. That erase clears apps, photos, messages, and settings from internal storage so the next owner starts fresh. A factory reset is the built-in erase tool that returns the phone to its first-time setup state.
Sign-out matters because leftover Apple Account or Google Account links can lock the next owner out.
Verification note: Program terms and availability can change. This page was checked against linked sources on November 05, 2026.
Back up before you erase
Device erase permanently removes local apps, photos, messages, and settings. Apple Support and Google Account Help both warn users to transfer data first because erased local content cannot be recovered from the phone. Move photos, contacts, chats, and files to your new phone or cloud backup.
Confirm the backup opened on the new device before you erase the old one.
How do I wipe an iPhone?
Apple Support explains the iPhone steps in its erase iPhone guide. Sign out of your Apple Account first, then erase the device. Do not manually delete contacts, photos, calendars, or documents while still signed into iCloud.
Apple Support states those deletions remove them from iCloud servers and all connected devices. Use device erase instead, then cancel or transfer AppleCare so the old phone is fully disassociated.
- Unpair an Apple Watch first, which also creates a fresh watch backup.
- Go to Settings > General > Transfer or Reset iPhone > Erase All Content and Settings.
- The process removes cards, photos, contacts, and apps and turns off Find My and Activation Lock.
How do I wipe an Android phone?
Google Account Help describes the Android removal and reset flow in its switch-device guide. Remove accounts first, then reset. Samsung covers card and reset details in its factory reset answer.
Account removal prevents Factory Reset Protection from blocking activation for the next owner.
- Remove each Google Account under Passwords and accounts.
- Go to Settings > System > Reset options > Erase all data, also called factory reset.
- On Samsung, use Settings > General management > Reset > Factory data reset.
Remove SIMs, cards, and paired service
Pull the physical SIM and any SD or memory card before handoff. Destroy a SIM you will not reuse. For eSIM, delete the cellular plan or choose the erase-eSIM option, then ask your carrier to suspend service.
CISA, relaying FTC tips, lists SIM and memory-card removal as part of upgrading phones safely. An SD card left in the tray stays with the phone, and factory reset clears internal storage but not a removed card.
What if you already traded it in?
If you no longer have the phone, erase it remotely in Find My and remove it from your account. For Android, remove the Google Account from the device through your account settings. Otherwise Activation Lock or Factory Reset Protection can block the next owner.
A practical check is that the phone restarts to the Hello or setup screen with no account login prompt. If the setup screen still asks for your old login, sign in and repeat the account-removal steps before the next owner tries to activate it.