RB450G says demo license expired after upgrade to 6.31

RouterOS General
1

I used webfig to download and install upgrade from 6.29.1 to 6.31 on my RB450G and it didn’t come back up. I hook up a serial cable and find this:

RouterBOOT booter 3.18

RouterBoard 450G

CPU frequency: 680 MHz
  Memory size: 256 MiB
    NAND size: 512 MiB

Press any key within 2 seconds to enter setup..

loading kernel from nand... OK
setting up elf image... OK
jumping to kernel code
Starting...
Starting services...

Demo license expired!
Please reinstall the router.

socket failed (errno=124)
socket failed (errno=124)

What the heck happened?

2

Also, I try to upgrade the firmware over serial, but that doesn’t work either:

xmodem receiver ready, waiting for data...
press <Ctrl>+X several times to cancel transfer
Sending /Users/mark/mikrotik/routeros-mipsbe-6.31.npk, 82982 blocks: Give your local XMODEM receive command now.
Xmodem sectors/kbytes sent:   0/ 0kRetry 0: NAK on sector
Retry 0: NAK on sector
Retry 0: NAK on sector
Retry 0: NAK on sector
Xmodem sectors/kbytes sent:   1/ 0kRetry 0: NAK on sector
Bytes Sent:10621824   BPS:8006

Transfer complete
press any key to continue...
file transfer ok
invalid upgrade file id
3

I ended up digging out an old windows laptop so I could run netinstall and re-installing using that did the trick. Luckily I had a backup of my router config. An OSX or Linux equivalent of netinstall would be nice.

4

Try to downgrade.