Step4: when the system upgrade package is downloaded, come out of the prompt window, and click
Confirm. Special attention should be paid here. After clicking, it’s forbidden to operate of the device.
Step5: after completing step 4, the device will enter the upgrade interface, waiting for the progress bar
to reach the full grid that completes the system wireless upgrade.
Step6: when the upgrade is completed, the device will restart automatically, repeat steps 1 and 2 to
check whether the update is complete, then finish it.
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