Every so often the GS5 will pop up a message saying "system update" in the notification bar. It does this quite frequently. It doesn't actually update anything though as PRL or data profiles are not updated. This is a BUG and should be addressed if it hasn't already. This is replicated on every GS5 I've tested with.
That big came out with 4.4.2 in these phones. When you turn them on they all show the update icon, then it goes away.
My s5 does this as well. Will display the notification but nothing happens. Its not checking for updates because it isn't updating the checked for updates date. I've factory reset my phone and the issue persists.
Hold UP Hold UP!!!..LOL Peeps,..This is all normal, you just never noticed the "system updating" when you started up your phone until you did the system update. All galaxy s5's say "system updating" every restart or startup. Its built like that!
My phone constantly does it throughout the day. At least 4 times a minute, literally . Sorry you're wrong this is not normal. Sure wish I kept my S4 cuz this S5 had been a BIG disappointment
same issue here for months. Get the "system update" notification VERY often, and was wondering about that for many months.