LG G4 stuck in checking connection after Flashing

[perezinho]

Hello everyone, and I wish you a happy new year in 2018. : d: d
It's been a week since I bought a smartphone LG G4 US991 American (US Cellular) in second hand, everything worked fine except that in the settings I could not activate the option '' Unknown sources '' for install applications without going through the playstore. I tried to restore the system but without success, I read some by on the web how to flash the phone with the latest official stock rom updates for my LG, and I'm skipping the action and I've flash and sa went pretty well because I followed the procedure to the letter on the Phoneandroid Site on this page [link removed by Moderator]. The flashing finished I arrive on the activation screen of the phone as described on the picture, but I block on the verification of the Google account (verification of the connection / Checking connection), which can not connect while I have a good Wifi speed. That's where I've been for a few days, thank you in advance to those who will take time to answer. 8) 8)

 

[Rukbat]

Remove your Google account and add it again (as an existing account, not as a new account).

 

[perezinho]

Remove your Google account and add it again (as an existing account, not as a new account).

Thanks for response,
I can connect my Google account, when I choose wifi connection, and a select NEXT, the phone block on CHECKING CONNECTION like on the pictures