4
2. Please insert a 2G SIM card into the device. Please note the device only supports a Micro SIM card, which
also needs to be GSM band and GPRS enabled.
3. Check the GSM and GPS signal on the display screen after turning on the device. If there is no GSM signal,
the SIM card may not be installed correctly.
4. Please change the SIM card only when the device is powered off, otherwise the SIM card may be
damaged.
5. The device can’t be turned off using the power button on the watch, after it is powered on and the central
phone number is programmed in. If you need to turn it off, please send shutdown command via App.
6. Don’t disassemble or modify the product, to avoid damage to the product.
7. If the product is damaged as a result of the breach of the warnings above, we will not bear any legal
responsibility.
Chapter 2 - Getting Started
2.1 Install the SIM card
1. Open the cover on the underside of the watch and then insert the micro SIM card into the SIM card slot,
shown in the photo below.
2. Clip cover back into place and then press the power button for 3 seconds to start the device after the SIM
card is installed correctly.
2.3 Download the App
For Android,
You can download the App from "Play Store" by searching "GREATGPS"
For iPhone,
You can download the App from "Apple Store" by searching "GREATGPS"
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