Flash ERROR with the j-link debugger

[Jack han]

Hello I currently have an error when flashing with j-link on a custom board.
The mcu is nRF52833 QDAA and the debugger pin is connected to 4 pins.
In VSCODE, CONNECTD DEVICES in CONNECTD DEVICES, the MCU name comes out at first, but then it doesn't come out immediately. I'm attaching a picture of it. Is there any solution?

[Simonr]

Hi

So it shows up as a known nRF52833 device at first, but then changes to UNKNOWN after a small amount of time? This is a custom board correct, what voltage is it supplied with, and what voltage(s) does your J-Link device support?

Could you perhaps make a private ticket where you upload your HW files so we could do a HW review of your device to make sure everything seems set up correctly? Also, is your nRF52833 already flashed with something or not yet?

Best regards,

Simon

[Jack han]

Apply a 3.3V voltage to the custom board
Flashing the nRF52833 custom board for the first time
This should not happen after that
Is there a separate voltage applied from the j-link device?
How do I create a private ticket?

[Simonr]

Hi

Please create a private ticket here: 

The nRF52833 DKs only support target boards running at 3.0V, so please try that if you're using a DK as the programmer and not a separate J-Link device (as these usually support a larger voltage range).

Best regards,

Simon

[Jack han]

I want to create a board with nRF52833 QADD in VSCODE but currently I only have QIAA, is there a way to make it QADD?