Fed up of seeing this?:
So, I took Paul's "/system" image, made a working copy of it and mounted it on my Ubuntu PC. Then I created a dir named "moved" in the "app" folder (which will be "/system/app" on Android, once flashed) and moved "otaclient.apk" and "otaclient.odex" into "moved". Finally, I unmounted my re-modded "/system" image (a copy of Paul's rooted one, modified to hide the OTA client from the hudl) then flashed it using "rkflashtool" (Ubuntu, sorry!), and now the only updates it does are the installed, included stock apps.
If you want to to do this on a working-to-date hudl, without all the ^- above -^ hackery, simply mount "/system" partition as rw, create a folder named "moved" inside it, (so you have "/system/moved") and move "/system/app/otaclient.apk" and "/system/app/otaclient.odex" into it.
NOW try force-updating me and locking me out when it fails, because I reset my device, Tesco!
I'd gladly upload this further-modified, rooted "/system" image to a file host, but since my upload speed is 0.5Mbps, I cannot. If anyone with superior broadband would like to follow the above guide and share the .img file, please do so with my blessing
Edited by glossywhite, 31 October 2013 - 11:11 PM.