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avvio 750 dual sim network lock code

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by (Genius) (10.4m points)
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Hi. Try formatting and the flashing the Avvio 750 with one of the ROMs here http://www.needrom.com/download/claro-avvio-750/ You will need to take it to one of your local phone repairs shops should flashing the ROM/firmware be to no avail. They will then use one of the special dedicated unlocking equipment for a small fee.

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