I just got my replacement Droid, and rooted it via sbf. My Original Droid I rooted with adb. I am having issues with code 31 every time I try to back up via nandroid, and I have issues installing update.zip's. Now, on my last phone, I had SPRecovery v0.99.2 (?) I never updated to the latest version. On the replacement, I have SPRecovery v0.99.3b I have reformated the sd card (both in the phone, and the computer) The only work around I have found, is open terminal emulator: su sync reboot (hold X while booting to go to recovery) Then I can back up with nandriod every time. Update.zip issue: When trying to apply an update.zip if I dont sync and reboot, I get the following error: E:Can't mount /dev/block/mmcblk0p1 (or /dev/block/mmcblk0) (No such file or directory) E:Can't mount SDCARD:update.zip Any thoughts? I have made it work via sync-ing in TE, but its a PITA to do it that way.