I check with ATT here in USA and they use GSM 850 and GSM 1900, both which are supported by the Blackview BV9000Pro.....they use LTE 700, 1700, 1900, and 2100...all also supported by my Blackview BV 9000 PRO. Still it will not connect to the network?.....This is in response to the answered string below:

[answered] blackview-bv9000-pro won't connect to att network USA
Postby Graydon4 » Thu Jan 25, 2018 7:58 am

I just got a BlackView BV9000 Pro in the mail, and it looks awesome. I stuck my SIM card in it and its being read, I can see my contacts and phone number from it. But its not able to log into my network for whatever reason. I took it to the ATT store to have them verify I had the correct APN and they made a new SIM for me, but it still didn't work for them either. HELP!!

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Re: [answered] blackview-bv9000-pro won't connect to att network USA
Postby blackview_admin » Tue Jan 30, 2018 11:39 am

Please compare if the local used bands are supported.