How to remove your Samsung and Google accounts (FRP lock) from a Galaxy phone before selling it
If you sell a Galaxy phone with your Samsung or Google account still on it, the buyer can get stuck at an account lock after a reset. Remove both accounts first, then factory reset from Settings, and the phone is ready for its new owner.
Back up your data, then go to Settings > Accounts and backup > Manage accounts and remove your Samsung account and every Google account. After that, do a factory data reset from Settings > General management > Reset. Removing the accounts first switches off Google Factory Reset Protection, so the buyer can set the phone up with their own details.
1. Back up everything you want to keep: A factory reset wipes all personal data on the phone. Save photos, videos, documents and WhatsApp chats first. You can back up to your Google account or Samsung Cloud, or copy everything to a computer using Smart Switch. Check that the backup finished before going ahead.
2. Remove your Samsung account: Open Settings > Accounts and backup > Manage accounts and tap your Samsung account. Tap Remove account, then Remove account again on the pop-up. Tap Sign out and type your Samsung account password. This only takes the account off the phone; your Samsung account itself is not deleted.
3. Remove every Google account: In the same Manage accounts list, tap your Google account, then Remove account and confirm. If you added more than one Gmail ID, repeat this for each one. If the phone asks for your PIN or pattern, enter it to finish.
4. Check the accounts list is clear: Go back to Manage accounts and make sure no Samsung or Google account is left. You can also remove other email or app accounts here. An empty list means the new owner will not be asked for your details after the reset.
5. Take out your SIM and memory card: Switch the phone off and use the SIM tool to remove your SIM card and any microSD card. A factory reset does not touch the SIM, and many people forget a memory card full of photos inside the phone they sell.
6. Factory reset from Settings: Go to Settings > General management > Reset > Factory data reset. Scroll down, tap Reset, then Delete all. Enter your screen lock or password if asked. Use this Settings route rather than the button-based recovery mode, because Samsung notes that resets done other ways can trigger Google's account check.
7. Check the phone starts like new: After the reset, the phone restarts on the first setup screen. You do not need to sign in. If it reaches setup without asking for your old Google or Samsung account, it is ready. Switch it off and hand it over with the box and invoice if you have them.