4g wireless tracker can remotely switch off and on by collecting text messages. So what's causing the 4g wireless tracker to fail remotely?

4g wireless tracker can remotely control the device by sending instructions through SMS, but not all of the time we can successfully remote control, and the main reasons for the remote locator can not be turned on are as follows:

First, the locator is powered off

A 4g wireless tracker power outage is like turning off our phones. Once the locator is dead, remote commands are no longer useful.

Second, the locator can not receive the signal

Similarly, the locator also needs to play a role in the place where there is a signal, once the location of the locator signal is weak, then the locator naturally cannot receive remote instructions.

Third, the device SIM card has not opened SMS service

The remote control is effective only when the SIM card of the device is enabled with SMS service.

4. The SIM card stores too many SMS messages

If the SIM card has a short message service, but the SIM card stores too many short messages, it will also cause the device to be unable to receive short messages from remote commands.

5. Instruction errors

Once the user finds that his device can not be turned on by remote command, then you can eliminate the above reasons one by one to achieve the purpose of remote switching oh.

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