Ensure the wipe options (usually USERDATA) are checked to guarantee the lock is removed. . The tool will prompt you to connect your phone. completely Press and hold the Volume Down button while plugging the USB cable into the phone.
If the phone had a Google Account signed in prior to the lock, simply flashing the firmware via FTF may trigger Factory Reset Protection (FRP) . When the phone boots up, it will ask for the Google email and password that was previously synced on the device. You cannot bypass this without the original credentials. The FTF lock removal only solves the local screen lock, not the cloud-associated FRP lock.
If your phone had a Google account signed in, you may encounter the Factory Reset Protection (FRP)
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