Why I couldn't my phone? only apple logo comes and go?

I have an iPhone 7. before 6 months I put on the update whereas putting on the charger and went for the work. when I return home my phone was off . then I tried to on the phone then the notification was connected to iTunes. then I connected to 3u tools and did iTunes flash that was failed because of error code 10. Whenever I exited the recovery mode continuously the apple logo comes and goes. can you please find the solution for this issue?