I have a Samsung Galaxy J7 did a factory data reset and now when I go into the browser it display this message Unable to access web browser through Wi-Fi due to an unauthorized factory reset
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That's the FRP. You need to connect with your google account assocuated with your phone before the reset.
Best regards,Mikey. I hope you found what you were looking for.
Sent from my Samsung Galaxy S7 Edge SM-G935F.