What are /r/motodev's favorite Products & Services?

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First off, which phone do you have? Moto Z, Moto Z Droid, or Moto Z Play?

I think you did this already, but if not, use the MDK Display app from the Play Store to verify that the phone is detecting your mod as a Display mod. You can also use the MDK Utility app.

The VID should be 0x00000*312* and the PID should be 0x000*10903*. If those are correct, then the phone thinks it is a Display mod and will automatically download and flash the appropriate firmware.

If these aren't correct, then it's a different problem. However, I assume it is detecting correctly since you get this error: Same error: External display is not connected. You wouldn't get that unless it thought it was a Display mod.

The next step is to make sure that you don't have anything blocking the 16-pins on the rear of the phone and the rear of the MDK. Just double-check that there isn't any gunk, stickers, damage, etc.

If they look good, then triple-check the DIP switches (triple because you already double-checked them for the last reply). For the Display mod, I have:

• DIP A: ON, off, off, off
• DIP B: off, off, off, ON

The DIPs are hard to read and it may not be obvious which is on and which is off. Also, make sure you are looking at A and B from the right orientation.

If you want to take a photo of the DIPs (or the phone and MDK pins), I'd be happy to take a look at them. Either PM them or post them to a site like Imgur.

edit: formatting, always formatting

There are apps that let you do this by using the car's windshield as the glass. I've never used one extensively, but they worked well enough at night on my HTC One M8 when I played around with them.

https://play.google.com/store/apps/details?id=com.headupnav.demo&hl=en

https://play.google.com/store/apps/details?id=idv.xunqun.navier&hl=en