Hello' Phillis please try the instruction here http://www.satechhelp.co.za/1537/Hard-Reset-Mobicel-Matrix you will let us know if that does not help. It may be necessary to flash in a fresh firmware onto your Mobicel Onyx device. Unfortunately, we currently do not have access to this model's firmware and thus it may be necessary to resort to this http://satechhelp.co.za/9877/Return-Mobicel-Phone-Tablet-Firmware-Flashing
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