Hello,

Acording user manual (st905, 915, 925, etc:

5.2. Admin number setting (After admin number setting, all SMS operations to the device are under this number only.)
Command: phone number+password 1 (This phone number is your own mobile phone number, not the SIM card number in tracker)
Reply: SET OK!

E.g: 132657901800000 1

13265790180 is your mobile number, 0000 is password 1 is serial means the first number.

If I right understand, when we lost admin control phone number we also lost control over tracker - right?

Then my question next:
1) How to change/delete admin phone number or make factory reset for tracker?

Thanks.

  • kuta replied to this.

    itmag_pro
    Yes, you’re right — according to the user manual for Sinotrack devices like ST905, ST915, and ST925, once an admin number is set, the device will only accept SMS commands from that number. If you lose access to this number, you may lose control over the tracker.

    To restore access or reset the device, you would need to perform a factory reset. However, the exact command can vary depending on the tracker model and firmware version, so we always recommend checking the specific manual or contacting the manufacturer directly.

    According to the official manual for the Sinotrack ST-905, the hardware reset command is as follows:

    Reset Hardware
    Command: RESET
    Reply: SET OK!

    You can find the official instruction here:
    🔗 ST-905 Manual on GPS-Trace