Always ensure the combination file matches the binary version of your current firmware (e.g., U0, U1) to avoid hard-bricking the device.
Once stock firmware is flashed, the phone will boot normally. You can now set up the device with a new Google account.
, you typically need to use "Combination Firmware" files or specialized bypass tools. FRP is a security feature that prevents unauthorized access after a factory reset by requiring the original Google account credentials.
Use gestures (drawing an 'L' on the screen) to reach and eventually open a web browser.