Câu hỏi thường gặp
If the serial No. appears not match with your device: cause by the environment have more then one devices, you need to choose yours one instate, else you can reprogram; turn on the device press PO2 twice and START one time, check the first line in the device show 221 orther way redo it, wait untill reset and show 000, after 30 seconds turn off power.
Start use normally. Thank you...
Turn on bluetooth, don't need to pair it will automatic scan and connect, turn on the location.
If it still doesn't connected, reinstall the App.
Delete App and install again
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