I have a chinese device with iGo Primo 9.6.13.405512 June 18 2014... NNG Kit assume Tempo Australia and NZ as I live in Melbourne.
The device is fine on a mains USB charger..
When I power the device from my accessories socket in the car - very often on starting the care the unit freezes in the IGO loading process. I have tried and fitted 12v inline filters and a time delay relay system so that the power is applied 10 seconds after the engine has started. The resolution is to hold the power button down, select power down and power up again and it loads ok.. Seems that when the device switches itself off when it detects the accessory power going, its left in a curious state which on restart fails the software load.
thoughts welcome