https://us.community.samsung.com/t5/Galaxy-S22/Android-System-Update-turn-off-automatic-download/m-p/2260222#M18165 Someone commented a suggestion but it looks to have disappeared. I didn't want to respond until I had a chance to test it: it works, but is still far from ideal.<BR /><BR />This Vz-locked S22U: if "Smart Update" is utilized then I can ensure at least that system updates don't download and install while I'm at work/not on Wi-Fi/in a building with weak mobile signal that'll cause the phone to heat up while downloading a large update from my jeans pocket. This function is different than I remember it being: I had "Smart Update" on unlocked devices and I'm sure that it still let you manually download whenever you wanted - the option just delayed installation until a pre-set time. Whelp, doesn't work this way now.<BR /><BR />The May security update that was released a couple days ago downloaded during the time frame I set for "Smart Update" so it occurred while I was at home and asleep. Still not ideal b/c it happens w/o warning. Luckily I had sufficient chr arge on the phone, as I don't charge while sleeping; I changed the time to when I'd be awake - if I see it start w/low charge I can plug it in - but I worry it could still download/update during a rare occasion where I might be out &amp; about. What if I have a late night drive &amp; am relying on GPS nav, and suddenly the phone automatically shuts down to install an update?<BR /><BR />Anyway "Smart Update" is the solution to this problem. But it's still a cruddy option to have to rely upon - why is there not an ad hoc dow load option available?<BR /><BR />If the poster who origi ally suggested using "Smart Update," whose comments disappeared, sees this: thanks so much for the recommendation. Sun, 01 May 2022 00:49:34 GMT TUBuckeye29 2022-05-01T00:49:34Z