I have a Nexus One that I want to keep at v2.2 for testing purpose. But the update 2.3.4 has been pushed to my phone and I keep seeing the notification to install it. Is it possible to disable the system update notification?
I believe the only way to stop the OTA notifications for good is to unlock/root the handset and install FOTAkill.apk to the /system/app/ directory. The version of this app for Froyo can be found within the GApps package.
You might also need to "fake" your phone's signature by modifying the /system/build.prop file and altering the
ro.build.... lines, so that they match the latest OS version.
On my Nexus One (it's rooted and running CyanogenMod 7) these are the relevant entries:
ro.build.id=GRI40 ro.build.display.id=GRJ22 ro.build.version.sdk=10 ro.build.version.codename=REL ro.build.version.release=2.3.4 ro.product.model=Nexus One ro.product.brand=google ro.product.name=passion ro.product.device=passion ro.product.board=mahimahi ro.product.manufacturer=HTC ro.build.description=passion-user 2.3.3 GRI40 102588 release-keys ro.build.fingerprint=google/passion/passion:2.3.3/GRI40/102588:user/release-keys
In either case you will need to root your N1.