I am trying to upgrade my Nexus 6 with version 5.0.1 (Build number LRX22C) via OTA to Android 5.1.
The OTA update is downloaded successfully and after pressing "Restart & Install" I see a dead droid with the message "Error!".
The phone was rooted and I unrooted it via SuperSU. Did not help. Wiping cache partition also did not change anything.