It seems like I was able to find an interesting OTA notification kill method:
I have a GC FE 2.0 setup I like to use sometimes, and the OTA was annoying the balls out of me. Note that the new update hasn't rolled out to me yet. But on GC FE 2.0, the methods you guys described above did not work. I could not not an update file in cache. Instead, I did the following steps as described below and I have no update notification anymore. All the other threads regarding the GC FE 2.0 OTA update notification just turned into a "install GB, FE sucks" fest.
Here is what should work:
Open Root Explorer, browse to /system, mount R/W, long press build.prop, and select Open in Text Editor.
Find the line:
Change this line to whatever the new ROM's equivelent build.prop's line is. I suspect that just "EP4" needs to be changed to "FP1".
Save the changes to the build.prop file.
Restart twice or more. I had to restart 3 times to get data back.
Disclaimer: Since I actually haven't tested this method with the new update, I don't know if it will work. Somebody will need to find what the line in build.prop for the new FP1 update is. You should be able to pull the build.prop from the new ROM or find somebody that has taken the update to get you the value of that line. Also, if puppies die because you did this, it's not my fault.
Edited by RWNube, 24 March 2012 - 01:10 PM.