Memory card not deteced by mobile or computer.

Memory Cards Mobile memory, professional cards and all other st
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RMA it you’ve obviously got one from the faulty batch, as for your data the only real option for recovery is to give it to a specialist company who’ll charge you the earth. But try sticking your card in the freezer over night that may allow you to access it and retrieve the data, bear in mind that cards do fail sometimes and if your data is important keep it backed up.