@lnxsr said in UT on Nexus 10:
"This phone needs restoring from a PC or service center."
I got that error message on my Nexus 4 back then when Canonical developed Ubuntu Touch. The solution was my usual solution to delete the local cache and run again.
Your case is different since you use the MD Tool to install, but that tool seem to have similar problems when the cache gets corrupted. I would therefore suggest to remove the cache and run MD Tool again.
To remove the cache you do: rm -fr ~/.cache/ubuntuimages