Pogoplug V4: Bad eraseblock 2 at 0x000000040000 (no replies)

I have a Pogoplug Mobile with a bad eraseblock 2, and another with a bad eraseblock 3. I was reading U-Boot: dmesg | grep -i 'bad' --> Bad eraseblock 72 at 0x000000900000 which says there is a work around to bad eraseblocks 0 thru 7. Can someone tell me what the workaround is?

Thanks!