Will getting the phone wet render it useless to try to reinstall the OS? I have the same problem. It got wet, then the reboot cycle from hell. Nothing has worked.
JL_Cmder won't find the port so I can't wipe it.
DM won't reinstall because it is "Unable to reconnect to the device during a multi-stage load operation" during the "wait for device initialization" phase.
I'm left with an expensive paperweight.