When you turn on or off the PeTrack, pay close attention to the back of the unit where you will see 3 LED light indicators. If it is your first time to setup the unit, removing the SIM card cover helps easily see the LEDs since illumination is difficult to see through the unit's smoke black cover.
When you turn on the unit (press and hold the power button for 5 seconds), the 3 LED lights will flash at the same time for a split second then will continue to blink slowly every 15-30 seconds. This indicates that the unit has been turned on and is ready to be tracked.
When you turn off the unit (press and hold the power button for 10 seconds), the 3 LED lights will blink in sequential order until all lights are extinguished.
You can also refer to the YouTube How-to link below.
NOTE: When you're done charging the device and have disconnected it from the wall adapter, make sure to power cycle (turn off and turn on) it. After you disconnect it from the wall charger/adapter the device will remain ON, make sure to turn it OFF then turn it back ON.