I have a SPH-Da100 app radio 2 with out of the box firmware ( its been installed in a car that was sitting )
I've been trying to update the firmware so the headunit will be usable with iPhone 5 and up but I keep running into the issue were it tells me "the version up file can't be read please save only one version up file to USB"
I started off with v8.30
then I tried v8.17
somehow I was able to find v8.15
but all these firmware versions give me the same error message
is there a firmware before v8.15 and if so does anybody have the firmware file ?