Hello @Richard
Can you help me where is PINOUT RX and TX this device (CJ730)?
pinout-cj730.png
Hello Richard ID, many trackers are manufactured in a G factory and then sold under other or no-name brands. The tracker looks exactly like the one from Micodus. They even have the USB flash drive.
What exactly is the problem?
In my opinion, there is no separate Rx/Tx pinout.
sulfy , I have the same tracker.
At https://micodus.com/news/file
you can see how to update it and the associated files.
Unfortunately, I still don't have the USB stick to connect it (it's probably in production).