big problem

[sajberspejs]

Hi

is there a way to fix a big problem? I did somting wrong with the u-boot fw. and now the Big5 ethernet v1 only links blue. :elec) :elec) :elec)

what to do? trow it from the balony?

[fvdw]

Please give some more details about what you did.

If you have overwritten uboot in flash and what you have written is not compatible with this device it will be very difficult to bring it back to live without special tools and hardware.

To see what happens at boot connecting to the serial interface on the pcb may give helpful information.

Ps did you try if it still possible to connect to uboot using the fvdw-sl console

[sajberspejs]

probobly wrong uboot.

connect serial to what?

i have big5 etehernet 1

not posible to connect with fvdw-sl console

[fvdw]

A serial connection is made with a serial port (COM port) on your pc. There are usb-serial cables for this. The usb input is routed to a com port on your pc.

However if you really have written an incompatible uboot to flash than you can forget that. You will need special tools as jtag interface and an uboot image for this device.
In case it was a 5big2 kirkwood based device there would be a backdoor by loading an uboot image via uart (serial port) but I don't know if this can work in a 5big1 which has an orion processor.
Example see here https://forum.doozan.com/read.php?3,7852,7852

I am afraid you have turned your nas into a brick if you really have written a non compatible uboot image.

But how exactly did you write a new uboot image? Its not so easy to write uboot to flash.
Or did you try to write new firmware to a disk?

[sajberspejs]

i think i used the 5big2 u-boot :(

i will throw it of the balcony on midnight 31/12 to celebrate my stupidity