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I just buy a A1 PRO, but I am unable to ADD a new APN or modify an existing APN. There is no option to add a new one, or remove an existing one, or modify an existing one. My phone is compatible with my carrier. the 3G works fine, but when a chose de 4G APN, the MMS doesn't work because the APN is not set up correctly, and I cannot modify it.
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