I found out how to disable updating. It requires rooting your phone, but it's really not as hard as it may sound.
Just install mojo SDK, put your Pre into developer mode (upupdowndownleftrightleftrightbastart), plug it in to your computer, select "Just Charge", then open up command prompt, type, without quotes, "novacom -t open tty://"
Then use these commands:
Code:
cd /usr/bin
mount -o remount,rw /
chmod -x UpdateDaemon
mount -o remount,ro /
Then reset your phone or just type
Code:
killall UpdateDaemon
To re enable, use:
Code:
cd /usr/bin
mount -o remount,rw /
chmod +x UpdateDaemon
mount -o remount,ro /
and then reset your phone.
When you're done, type exit to exit out of novacom, and unplug your phone.
I'd post a link to the "Blocking Updates" page on WebOS-internals, but apparently, I'm not allowed to post links until I have 10 posts here, hrm.