I'm having similar issues with my new JY-VO131N4 with the latest firmware (2019-4-3), I have an OBDEleven dongle with which I want to connect using the OBDEleven_app (https://play.google.com/store/apps/details?id=com.voltasit.obdeleven&hl=en_GB).
The app cannot connect to the device, I can see the OBD device in the Bluetooth pairing but again shows only a broken link. The app tells me that it needs to turn on the bluetooth to connect, which I give it permission. Then it just waits for a long time trying to connect.
I have connected OK to the OBDEleven dongle using my phone, and it works perfectly, so I know that these work ok.
Please help fix this issue, the head unit has been really good bar a few tweaks and quibbles.
The app cannot connect to the device, I can see the OBD device in the Bluetooth pairing but again shows only a broken link. The app tells me that it needs to turn on the bluetooth to connect, which I give it permission. Then it just waits for a long time trying to connect.
I have connected OK to the OBDEleven dongle using my phone, and it works perfectly, so I know that these work ok.
Please help fix this issue, the head unit has been really good bar a few tweaks and quibbles.