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I am trying to give my old Samsung to my daughter.
I have an unlock code for the Samsung s7 from Vodafone but it just says unlock unsuccessful.
I just don't know what to do next?
Some Samsung Phones need a master Code as well as the Nuc Unlocking Code.
This may help.
If not the either customer services on 191 or the Vodafone Social Media Team here will be able to help once they've caught up with your thread.
Current Phone > Samsung Note 10+ 5G _256Gb > Model: SM-N976B.
Samsung One Ui 2.1 / Android 10.
Samsung Gear s3 Frontier Watch.
Samsung Galaxy Buds.