I have 3 different headunits each running a different Firmware, MCU, and Zlink versions. Ever since getting an iPhone 17 Pro Max with iOS 26 (currently iOS 26.2),  two of the three units keep ...

HM5599-C-PLAY-HD ,  back up camera wiring?  Which wire does the back up voltage go to? 

I have no sound thru car when phone is connected via Bluetooth on phone calls. What's the problem?

Hi, Do I need to update my HM5599-C-PLAY-HD? I have no sound with CarPlay audio phone calls. It won't let me turn on the audio in Bluetooth. Here is a pic of the firmware and message in blue tooth....

How to fix blank sreeen on sterinf wheel control settings screen

@Support Dasaita  How do i post a video if you dont allow it?! 

@Phaco Hi customer, Have you updated the firmware that we sent you, if no, you may need to forced updated it? Please check the instruction in the email.

@Mike Carbary Please kindly let us know if you have further issue of the head unit, you could further describe it, note that this plug controls the steering control and the AUX, and you could also ...

@Mike Justis I sincerely apologize. Our factory explained that this brightness level was adjusted to a balanced setting that meets the needs of most customers. If you are not satisfied with it, y...

What the Hell, Dasaita!  the stupid thing doesnt even boot up anymore!  It just flashes android 13 and restarts over and over again.  Now I have a $1200 piece of crap stuck in my das...

Yes #3 is the one

It does this but is still so bright it lights up the entire can of the truck and makes driving difficult.

Settings > Connected Devices > Bluetooth > turn on Auto connect Settings > Connected Devices > Bluetooth > turn on Auto Answer

To set up your rearview camera: Go to: Settings > Car > Factory Settings (126) > Other. Turn ON the "Reverse detection" switch. This will automatically a...

Please go to Settings> Car >Extra Settings> turn off Reversing Trajectory Display

Is your backup camera image flipped sideways?Don't worry, this is a common setting that can be easily adjusted. The issue is caused by the mirroring setting of the camera signal. To fix it, please...

Please go to Settings > Car > Extra Settings > enable "Allowed to play music automatically when USB or SD inserted?"

Offline Navigation: Pre-installed maps are available for most regions. Google Maps can also be used offline. You can pre-download map areas in the app for access without an internet ...