The first step: scan the recharge QR code on the back of the device to enter the real name of the iot platform
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The second step: then choose the time to choose the recharge, there is a month, three months, six months, one year, two years can choose, choose a year is to send 1 month traffic.
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The third step, exit to re-scan the code, carry out the official real name of the telecom company, submit the information, wait for 10 minutes, and the telecom side will be able to use it normally after review