There where Cisco lacks in writing documentation on this subject at this point, I figured out that it could be handy to write the (small) steps down on how to get a 1600/2600/3600 AP in rommon back on track (autonomous or controller based).

So here you have it… 🙂

ap: set IP_ADDR 192.168.1.2
ap: ether_init
ap: tftp_init
ap: tar -xtract tftp://192.168.1.1/ap3g2-k9w7-tar.152-2.JA.tar flash:
ap: set BOOT flash:/ap3g2-k9w7-mx.152-2.JA/ap3g2-k9w7-mx.152-2.JA
ap: boot