(Solved) Yanhua Mini ACDP got “open serial port failed”

Offer two solutions to Yanhua Mini ACDP got error ” open serial port failed, please check whether serial port is occupied” when installing on PC.

Here are two images showing the error:


Solution 1:

Firstly, use your phone to connect Yanhua ACDP with the WIFI. (How to connect Yanhua ACDP with your phone?)

Secondly, use your computer to connect Yanhua ACDP with the same WIFI as your phone.

Thirdly, unbind from mobile phone, then the computer will be connected automatically.


IOS System requirements:

1.System Version: 9.0 or more

2.Cell phone Models: iphone6 or more

3.Running Memory RAM:> 2G

4.Storage Space ROM:> 1.5G

Android System requirements:

1.System Version: 5.0 or more

2.Running Memory RAM:> 2G

3.Storage Space ROM:> 1.5G

Solution 2:

Buy one extra Bluetooth Adapter by Yanhua as below, if your phone operation system is incompatible.

After inserting this Yanhua Bluetooth Adapter, you can see the name is “USB Serial Port (COM2)” instead of “Bluetooth SPP Driver (COM10)”.

Image: USB Serial Port (COM2) read by Mini ACDP.

Image: Bluetooth Adapter by Yanhua is inserted into ACDP and working fine.


Can I use my own Bluetooth adapter instead of the one from Yanhua?

Like this one:

Answer: Better buy the Bluetooth adapter from Yanhua. The price should be cheaper if you are a regular customer.