Edge2 stopped working after connecting it to the official adapter

Technical Support
1

I have been using the Edge2 with a power bank that can deliver the correct V and A. As I was going to start using the Edge2 more stationaryly, I connected it to the official adapter I bought.

I connected the device to the adapter, and it turned off. After that, the device does not turn on anymore. I have tried with my power bank, and I only see the system light blink very briefly and then turn off. No other LED is on.

I thought it could be the IO module2 I am using to save files on the SD card, but that is not the case. I disconnected all devices and tried again, and the result was the same.

I need help with this issue. The Edge2 was using the official Ubuntu 22.04.

2

Hello @omarc

Can you try to boot in to oowow?

Press FUNC + RESET to boot in to oowow.

3

Hello @numbqq ,

I have tried booting into oowow by pressing FUNC for some seconds and then RESET briefly but the board still does not turn on (no LEDs on).

4

When you attache the PD adaptor does the power bank is also connected?

Which USB-C port you used to supply the power? 2 or 4?

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5

Hello @numbqq ,

I disconnected the power bank and then connected the adapter. I did not connect both simultaneously; I was using USB-C (port 2) to connect a keyboard.

I connected the adapter to the port 4.

6

@numbqq ,

I have unplugged the IO Module 2 and the Khadas os08a10 camera to see if the problem was coming from them, but it still does not turn on. I forgot to mention I have the Edge2 Maker Kit Pro.

I would appreciate your help in solving this issue.

7

Can you also try to supply the power from port 2?

Does any led flash when you quick press the FUNC ley 3 times in a second?

8

Hello @numbqq ,

I have tried connecting it to the port 2. The situation is the same.

If I press the FUNC button three times per second the RGB LED1 turns on red three times (blinking twice each time). Is that a good sign?

9

Yes, can you try to flash the image to eMMC with the USB tool?

  • Supply the power with port 4
  • Connect port 2 to your Host PC with a usb-c cable
  • Download the Android image and extract it to .img file
  • Enter upgrade mode with TST mode - Quick press FUNC key 3 times in a second
  • Follow the docs to flash Android image to eMMC
  • Reset the board
10

Hi @numbqq ,

I have followed the steps you suggested. However, my PC host cannot recognize the Edge2 device when connected.

In the docs to flash the eMMC, it mentions that when connecting the Edge2 (before enabling the TST mode), the board should turn on automatically. It does not happen for my Edge2. Nevertheless, I followed the next steps and triggered the TST mode.

The problem is that neither a PC host with Ubuntu 22.04, Fedora 39, nor Windows 11 seems to recognize the board in normal or TST mode. I follow the docs to try to flash the OS in these systems. In the case of Windows, a notification appears saying that the USB device cannot be recognized and that it might be faulty. In the case of the Linux hosts, the dmesg log shows error messages like:

[ 3522.238155] usb 1-11: Device not responding to setup address.
[ 3522.442444] usb 1-11: Device not responding to setup address.
[ 3522.649459] usb 1-11: device not accepting address 75, error -71
[ 3522.649590] usb usb1-port11: unable to enumerate USB device

Maybe I am missing something. I also tried to use the UART mode to enable the TST mode, but the driver khadas provided for the UART device in Windows seems to be old and causes incompatibility.

In your previous message, you mentioned Supply the power with port 5. Did you mean port 4? Port 5 is a USB type A.

11

Yes, sorry, it is port 4 to supply the power and a usb-c cable connect port 2 to your host pc.

After you try TST mode, what’s the result of lsusb ?

12

Hi @numbqq ,

After I connect the board powered and via USBC, and trigger the TST mode with the FUNC button I don’t see any changes with the lsusb command. I only see the usual USBC devices I have connected to the host.

The documentation says that I should see a Rockchip device listed when using the right lsusb but I don’t see any new device.

13

Hello @omarc

Our after-sales team will help you later. Could you tell us where you buy the Edge2?

14

Hello @numbqq ,

I bought it online at the Khadas store.

How can I reach out to your after-sales team to give them the order details?

15

Hello @omarc

Please contact shop@khadas.com.

1 Like
16

Thank you, @numbqq , I have sent your team an email with all the problem details and the order confirmation I received when I bought the board and adapter.

1 Like