Hi everyone,

I have a Mekede DUDU7 head unit and I’ve been running into some frustrating connectivity problems recently. I’m hoping someone here has seen this before or can point me in the right direction.

What used to work:

I used my iPhone as a hotspot so the DUDU7 could connect to the internet.
I connected via Bluetooth for wireless Apple CarPlay, which worked fine.
I recently added a USB volume knob, and everything continued working normally for a while.

What’s going wrong now:

The DUDU7 has suddenly started having trouble connecting to my iPhone’s hotspot.
Wireless CarPlay over Bluetooth also fails or disconnects frequently.
In the wireless settings on the DUDU7, there is a “Hotspot” option (the one that makes the DUDU7 act as the hotspot). I do not want this on.
When I try to toggle it off, it immediately turns itself back on again, as if something is forcing it.
The setting “Enable hotspot automatically” is OFF, so I can’t understand why it keeps reactivating.

What I’ve tried:

Toggling hotspot on/off multiple times → keeps turning back on.
iPhone side seems normal, no visible Shortcut/automation set (at least not intentionally).
No new major changes except plugging in the USB volume knob (but it worked fine for a time before this problem started).

My questions:

Why would the DUDU7’s hotspot mode refuse to stay off? Is there a system service or known bug that forces it back on?
Could the USB volume knob be triggering some internal change (power, USB routing, etc.)?
Has anyone experienced this exact issue with hotspot auto-enabling on DUDU7?
Is there a firmware update or hidden setting that controls this behavior?
Any suggestions for fully resetting Wi-Fi/Bluetooth logic without factory resetting everything?

System details (if helpful):

Model: DUDU7 for BMW E53
iPhone for tethering + wireless CarPlay
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This board is a bug feedback board，In order to improve the efficiency of communication, it is important to provide the following information when posting a message
【1】Provision of system information，Settings - About - long press on the top left corner of the picture - it will bring up a message screenshot to send to us!
【2】We need to be provided with a detailed description of the error and the steps to reproduce it
【3】If you encounter system software errors (not third-party software), please provide logs for our R&D staff to analyse. Send us all logs from the duduos_crash directory.
【4】[4] If there is an error report but no corresponding log is generated, you need to capture more ANR data, the specific steps are as follows, go to Settings - Vehicle - Factory Settings (108) - Other - click Synchronize ANR option, and then go to File Management to pack the crash folder and send it to us.
【5】For more information, read the top post on this board

Any help, tips, or known fixes would be hugely appreciated! I’m trying to restore the original workflow: iPhone hotspot → DUDU7 internet & wireless CarPlay.

Thanks in advance! 🙏