Compiled U-Boot-B3 (link) natively on the B3 (updated to ver. 2.6). u-boot.kwb file was made without error.
Flashed the u-boot with the following commands:
The flashing went without errors. I even checked and compared the contents of /dev/mtd0 and u-boot.kwb. They were identical.flash_erase /dev/mtd0 0 0
Erasing 64 Kibyte @ b0000 -- 100 % complete
mtd_debug write /dev/mtd0 0 $(stat --printf '%s' "u-boot.kwb" ) "u-boot.kwb"
Copied 257376 bytes from u-boot.kwb to address 0x00000000 in flash
After reboot my B3 is bricked. The front LED stays WHITE. I tried to use a rescue disk but instead of GREEN it is now YELLOW and doesn't seem to work anymore. I think the u-boot is screwed somehow...
What is my option now? Is there instruction on how I can unbrick it with serial cable?