fxm I am fine with not having the updates, but I would like to stop the error messages coming in.
Please note that the device isn't missing just feature updates, but also security updates. At this point it would be prudent to assume that a 3a is remotely exploitable and exploitable by somebody who gains physical control of the device.
I had a 3a, and prefer the size to the 6a I have now. But 3a devices are no longer secure.