Hi, Im new to the forum. I have an 05 TL with Nav, I recently got a isimple ipod interface and it will not work with my iphone 4. I bought it used from a buddy, I researched it and found some info on some compatibility issues with is04. Just wandering if somebody else might have also experienced this problem and maybe a solution. Thanks

 

update the firmware it should work. mine does http://peripheralelectronics.com/firmware/index.asp

 

Thanks I will try that

 

Updating the firmware worked!!

 

so does this firmware fix the problem with not being able to show text on the non chipped isimple system with IOS4?

 

Im not sure what issue you are referring too, I just got mine and I bought it from a buddy so Im sure that mine is non chipped. What is the problem, when is it supposed to show text, on ipod mode or when playing something like Pandora??