s7580 firmware upgrade .. problem

i have s7580 samsung on condition but hang always i flashed set this "S7580XXUBOC1_S7580MSTBOC1_S7580XXUBOA1_HOME.tar.m d5" firmware set shows firmware upgrade encounter then i again flash with repair firmware "S7580XXUBOA1_OXXBOA1" full flashed but set still same problem again i flashed "S7580XXUBNA3_S7580OJVANA5" this firmware but still . anyone can help me ??? plz


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