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Why, after I've installed the update on the the phone, does it then tell me there's a system update? I've updated the system 5 times now and it's still telling me there's an update?
It has been reported before, it seems that it install update by update until it installs the latest one
Hi @LordSean08, welcome to our forum!
Have you very recently started using the device for the first time or have you not done the system updates when you have received a notification about one being available?
If you have recently started using the device, there has been a lot of updates since it was released about 2 years ago and these needs to be done, one at the time.
Just to make sure that you are installing a new update each time, go to Settings > (System) > About phone > write down the number that you find under "Version" > install the update and check if the number has been changed. If it has, you have installed a new version.
You can install all of them at once but this requires you to perform a software repair using Xperia Companion and this will delete all data stored on the internal storage, so I would only recommend doing this if you haven't started setting up the device yet.
I hope that answers your question and have a nice day! 
Thanks Jonas, will give it a go.
Today there was an upgrade of the system to version 47.2.A.11.228 what is new in it?
@LordSean08, perfect! 
Let me know if there is anything else and have a nice weekend.
@Sportsman, I'm afraid that I don't have a change log, but there should at least be a new security patch from Google included in the update.
Thanks Jonas, I persisted through several more updates and everything seems tickety boo.
@LordSean08, perfect! 
I had to Google "tickety boo" as I have never heard of that before, but seems it's slang for "everything is OK"! 
Have a nice Monday!
Ha ha ha, yes, its a very old English phrase. Have a nice day Jonas.
@LordSean08, haha! 
I recently watched Top Boy on Netflix and picked up on some new UK slang, but I guess most of that is used in certain areas.
I think the show is mostly about East London, Hackney to be precise.