Pioneer AVH-P4400BH installed in 2012 WRX
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08-01-2013, 05:52 PM
2012 WRX-5 door
He said there was no way to roll the firmware back. I asked if copying the original firmware files back to the unit woupd work and he said no. The only way it will work now is if the updated format is used by my S4.
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