mr3420 v2.1 always "Button was pressed for 10 sec..."

[mszerg]

Thank you for your work.
I successfully flashed wr703n, but with mr3420 v2.1 I have a problem. I do not push the reset, but always get:
Button was pressed for 10 sec...
Starting U-Boot netconsole

If I push reset on 3-5second nothing happens and after 10 seconds I have the same:
Button was pressed for 10 sec...
Starting U-Boot netconsole

Help please

[pepe2k]

Hi @mszerg,

How does it look if you turn it on with pressed reset button? Does it boot normally then?

Regards

[mszerg]

I make video
https://www.youtube.com/watch?v=mSozk4P1amc&feature=youtu.be

Thanks

[pepe2k]

Hi @mszerg,

I don't have any MR3420 v2.x at this moment, but I will test it on WR841N v8.x and confirm that it's working (button functionality). WR841N v8.x uses the same hardware platform.

In worst case, you might have small short somewhere on your PCB, so that the GPIO17, used with reset button is always in active state. I have seen some other TP-Link models with that kind of problem.

Regards

[mszerg]

Hi, Piotr.
I find short as you said, and u-boot work now.

Thank you very much.