UniGuard Technology Limited
- -
www.uniguardgps.com
10
Q: After set white list, cannot monitor.
A: Please make sure the SIM card of the device has opened caller ID.
Q: Device show online, but it shows “wait for the device responses “when you set
instruction with APP.
A: a. Device signal is not good, so not smooth result of GPRS; b. Device is busy.
Q: The SIM card has GPRS data plan, but the
device still show “logoff“ or “offline”.
A: The tracker have pre-program all most APN, maybe the APN of the SIM card
you use don’t preset in the tracker, Please set master number first and then send
command to add you APN into the tracker.
The command is: apn,apndata#