My Nexus 7 32gb WiFi, running stock 4.2.1, is stuck on the Nexus 'X' symbol loading screen after boot. It stays there until the battery goes flat. The issue is that I have not enabled developer or debugging mode, meaning that I cannot connect to the PC via the adb.
Is there another way that I can flash a new ROM? Apologies if this is a question answered elsewhere, but all recovery methods that I have discovered so far require 'USB Debugging', which I currently do not have access to.