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You need to pressing the button at the GUI when you connect to PC to update the firmware.
I already pushed the button. It didn't work
Pls keeping pushing the button during the connection.
Tried it all. It didn't work
From our side, if you do the action I said, you could connect the GUI.
Pls see below similar problems.
ok ,this problem alreay solve ts
Glad to hear that, if no other questions, pls close this topic.