The veteran of GPS trackers: adminip server command, IMEI check, and the quirks of old firmware.
The Coban TK103 (sold as GPS103 and countless clones) is the veteran of the tracker world — the command set every later tracker copied. In the Bug-X app, pick “Coban TK103 / GPS103”. Clones usually accept the same commands, but if yours answers nothing at all, check the manual in the box: some clones ship with different defaults.
A SIM card with mobile data and SMS enabled, with credit loaded
Your carrier’s APN name
The tracker powered with a GPS fix — outdoors with a clear sky view
The Bug-X Ebike app installed and signed in
Old Coban firmware only obeys the phone number stored as admin. If your unit ignores everything, first register your number per the manual’s admin command, then set the APN with your carrier’s APN name. Confirm each step by its reply before moving on — silent trackers are usually unauthenticated trackers.
With defaults: adminip123456 <host> <port>. Password glued on, no space.
Text imei123456 (with your password if you changed it) — the reply is the tracker’s IMEI. Enter exactly that IMEI when the app asks for it during registration: a single wrong digit registers a bike that never reports. Then wait a few minutes outdoors and check My Bikes.
Clone warning: if adminip gets no reply at all, your clone may use a different command word or password — check its own manual rather than retrying blindly. Ten identical SMS in a row will not fix a wrong command; the manual will.
Register the bike, draw its safe zone and take it for a spin — the Bug-X Ebike app walks you through the rest.