The MV730 looks like a GT06 but speaks H02: pick SinoTrack / MiCODUS in the app, send adminip, and wire the relay properly.
The MiCODUS MV730 (and its siblings MV720 and MV740) is the tracker most e-bike owners actually bolt on: it carries a relay for remote immobilize, which is exactly what makes a Bug-X-connected bike lockable from the app. One thing to get right up front: despite often being sold as “GT06-compatible”, the relay-bearing MV series speaks H02. In the Bug-X app, always pick “SinoTrack / MiCODUS / H02” — never GT06 — or the server will never understand your tracker.
The MV730’s relay interrupts one side of the e-bike’s power or ignition circuit so the app can immobilize the bike. Follow the wiring diagram in the box exactly, keep high-voltage and signal wiring apart, and if you are not confident with vehicle electrics, have an installer do it — a miswired relay can strand you or damage the controller. Power the unit and take the bike outside for a GPS fix before touching any SMS.
Set the APN per the MV730 manual first. Then send the server command with the password glued onto “adminip” (no space) and the live host and port from the tracker-setup page. The app composes this SMS during guided registration once you pick the SinoTrack / MiCODUS protocol and enter an MV730 model.
With defaults: adminip123456 <host> <port>. This is NOT the 804 command from the SinoTrack ST-90x guide.
Text param1 to the tracker: the reply lists firmware version, ID, server IP and port, and APN — confirm the server matches Bug-X. Then, with the bike safe and stationary, test immobilize from the app once: the bike should refuse to power the motor, and mobilize should restore it. If the relay clicks but nothing changes, the relay is wired to the wrong circuit — recheck the diagram.
Test immobilize exactly once, somewhere safe — never in traffic. And never pick GT06 for this tracker: the single most common MV730 failure is the wrong protocol choice in the app, which produces total silence with no error anywhere.
Register the bike, draw its safe zone and take it for a spin — the Bug-X Ebike app walks you through the rest.