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I’ve recently changed my phone number Andy have set up my data but I don’t know how to setup my hotspot.
This should help.
You may also need to phone customer services on 191 or use Live Chat to have this feature turned On in your Account Settings if your having any issues after following my link.
Sub Note > please note using tethering can drain the phones battery quicker and use more data allowance especially if a person is connecting to a computer or tablet.
Current Phone > Samsung Note 9 _512Gb > Model: SM-N960 Hybrid-Duos.
Samsung One Ui / Pie.
Samsung Gear s3 Frontier Watch.