ncrashb

Good idea, however the SD card is locked so it will not show up in Windows/any computer. There is a process for unlocking the card, which is done on the head unit itself. I've never done it but there is info online or on this forum somewhere to unlock the card and then grab the image file. The actual process for opening up the head unit isn't too difficult, just got to be careful and remember where the screws go.

I'd recommend just downloading the unlocked SD image file from above in this thread, then use a brand new SD card to put that image onto (using win32diskmaker program). Instead of trying to unlock & use the SD card that came with the Pioneer headunit; those cards are trash "Transcend" brand. They don't last. Once complete, do the latest firmware update for your region from Pioneer's support website. Then you should be good to go. Helps to test it before putting everything back together since it is such a pain to take apart & reinstall into the car dash.

Just made an account on this forum just to post on this thread I have an AppRadio4 (SPH-DA120) in Canada which has worked fine for 3 years, with the odd weird issue which was resolved by rebooting my iPhone or restarting the car. But now I have the "Software Error" screen no matter what I try. So, I'm going to try to replace the internal SD card and use the US backup image posted earlier in this thread. I'll report back with my findings/results. If successful, I'll try to document the steps easy enough for anyone to follow. I'm on IT technician/server admin so the technical side of this sh