RAK serial port tool not working for RAK811 Evaluation board

kaka_619 · July 5, 2020, 5:46am

Hello everyone. I am not receiving any response from my RAK serial port tool from the RAK811 Evaluation board. I even disconnected and reconnected it but it still isn’t working. Can anyone help me fix it?

nmcc · July 5, 2020, 9:03am

Is COM5 the only com port available to select?

Can you try another computer as a quick sanity check?

kaka_619 · July 5, 2020, 9:21am

@nmcc COM5 is where the LoRa board is connected to.
Double checked it. There’s also COM3 and COM4.

Nicholas · July 6, 2020, 1:28am

When you press the reset button, does the serial port respond? Can you send me the picture of your development board?

nmcc · July 6, 2020, 12:19pm

Just to be provocative, how do you know it’s on COM5 - can you quickly check the other com ports?

kaka_619 · July 7, 2020, 7:24am

@Nicholas here’s a picture

I pressed the reset button. Still doesn’t work

kaka_619 · July 7, 2020, 7:25am

@nmcc

The device manager shows it is on COM5

Nicholas · July 7, 2020, 9:02am

You are recommended to replace a USB cable to try.

kaka_619 · July 10, 2020, 9:53am

@Nicholas tried it. doesnt work

Nicholas · July 10, 2020, 10:03am

Dear Jerry,

If you are using a laptop, it may be caused by a lack of power. Make sure it is fully charged.

If these are normal, please tell me if your equipment is brand new. Maybe you can leave your email and I will send you the method of re-burning the firmware.

Best regards！

kaka_619 · July 10, 2020, 10:04am

The equipment is brand new. I have messaged you my email