GadgetRenu guides / Data Security
How to Factory Reset an Android Phone Before Selling
Selling a Samsung or Google Pixel? Back up your data, remove linked accounts and factory reset your Android phone before handing it over.
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The quick answer
Verify your backup, files, number and important accounts on the replacement first. Remove Google and manufacturer accounts from the old phone, remove its eSIM after service transfer, and use the full factory data reset for your model. Leave it at setup and take out your physical SIM and removable memory card.
Key points
- Verify files and essential sign-ins before removing accounts or erasing.
- Use the full factory data reset; resetting settings alone leaves personal data.
- Transfer service before removing the old eSIM and remove personal SIM/memory cards before shipment.
Confirm what has transferred
Check contacts, photos and files on the replacement, then test messaging, calls and important apps. Google notes that not all Android apps can back up or restore all their data and settings. Verify access to email, banking, password managers and work accounts rather than relying on copied app icons.
Check local folders and app-specific backups too. If you use an encrypted microSD card, follow the manufacturer's instructions to preserve its contents before resetting; Samsung warns that an encrypted card may become unreadable after a reset. Keep the old phone intact until anything important is accessible elsewhere.
Remove accounts on the old phone
Use the phone's account settings to remove its Google accounts, then sign out of a manufacturer account such as Samsung's if present. Google's device-protection guide explains that removing the Google Account from the device turns off that protection. Removing an account from the phone is different from deleting the account itself.
Keep the passwords available to enter on your own phone when prompted. A work or school restriction needs the organization's help. Do not use a recovery-mode reset as a shortcut around credentials you cannot resolve.
Remove the old cellular profile after transfer
First test your phone number on the replacement, including an incoming call and text. Then remove the old phone's downloaded eSIM profile using the instructions for that model and carrier. Do not assume every factory-reset option removes it automatically.
On supported Galaxy phones, Samsung's eSIM guide explains plan removal in SIM management; menu labels vary. Deleting a profile from a phone is not cancellation of the carrier contract. If transfer has failed or you are unsure which profile to remove, ask your carrier before proceeding.
Use the full factory reset for your model
| Device | Official starting point |
|---|---|
| Google Pixel | Settings > System > Reset options > Erase all data (factory reset). Google instructions. |
| Samsung Galaxy | Settings > General management > Reset > Factory data reset. Samsung instructions. |
| Another Android brand | Use that manufacturer's current reset guide for the exact model. |
Review the erase summary and complete the credential prompts. Samsung may require a network connection and its account password to finish. Reset all settings or a network-settings reset does not erase your personal files and apps.
Google advises waiting 24 hours before a factory reset if you recently reset your Google Account password. For Pixel trade-ins, it specifically directs users to reset from Settings. If your menu differs, stop and check the linked guide rather than guessing.
Finish the handover without signing back in
Leave the phone at its initial setup screen. Remove your physical SIM and removable microSD card if fitted; do not open a sealed phone to look for one. Do not include passwords, recovery codes or account credentials in the package.
If setup asks for the former owner's Google or manufacturer account, the handover is not ready. Resolve that association through the account owner or official support before selling. A setup screen by itself is not proof that all account restrictions are gone.
If the phone cannot be accessed
An inaccessible phone is not necessarily erased. GadgetRenu accepts some nonworking phones when the model and condition are supported, but unresolved account locks, blacklists, unpaid finance, water damage and unsafe batteries remain excluded.
Contact support before shipment if you cannot remove an account association or confirm an erase. Do not send your password as a workaround or attempt unsafe charging to reach the reset screen. The upgrade transfer checklist can help if you still have access and need to finish moving accounts.
Check your device's offer
Verify your backup and remove Google and manufacturer account associations.
Get my offerReview the shipping, inspection and payment terms before you send your device. Contact us if you need help.
Sources & useful links
Check the original guidance and the terms that apply to your device.
