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An acronym for "Over The Air" update, an OTA update generally refers to a firmware upgrade that is distributed to phones or other devices wirelessly, usually by a cell carrier or device manufacturer.

An acronym for "Over The Air" update, an OTA update generally refers to a firmware upgrade that is distributed to phones or other devices wirelessly, usually by a cell carrier or device manufacturer. This is sometimes also referred to as FOTA ("Firmware Over The Air"). Android has supported OTA upgrading since at least version 1.5 (Cupcake).

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