i bought a Z2 worked great except for the rear camera thought it was the camera brain ordered a new one did not fix problem, it ended up being the input on the deck was bad so i got a new unit from my retailer now i also have the heat problem *old unit worked fine was from apr 07 new unit is from jul 07* seems when ever the temp is 90f+ the unit will not boot music still play. if temp is below 80f the system boots regular though the new unit does seem to take allot longer to fully boot up over the old system.
i read about a software update that may help with the heat issue, where would i
