Thank you for your reply.
Maybe I not brain or less use phone.
No matter what brand phone or this is mean about "factory format"-"Samsung come with phone sotfware" and "android OS" you can't move to SD card, but all apps you ready move to SD card?
I also have some situation, the apps or services will auto download to my phone, you unable find the file name, don't know how or choice name file to delete, such as below kind
1)Yahoo! Finance, Yahoo!
2)Finance Daemon, Yahoo!
3)News, Google play magazine
4)"Many don't know what Google"
now just choice "closed" this service, but I think above still eat my space and memory.
How can you know what apps or services not your download or auto download and how deleted it?
"samsung s3 -> oppo find 7a -> zte axon 7 -> samsung a70 (2019)"
Above phone still good in condition?
Why you buy so many phones and so expensive one?
You install game to play or not?
Your samsung s3 "lang" or not? This is because battery damaged will make the samsung s3 "lang"? or why?
Before you change the samsung s3 battery or not?
The samsung battery normally can use around 3 years only?
Your samsung s3 power button damaged or not?
When your samsung s3 plug with usb then connect to computer, do you always happen auto unplug problem or not? so you hard to connect between phone and computer?
Your samsung s3 have any problems?
If you first smart phone is Samsung s3 and buy in year 2014, now 2021 do you think the more cheap model like Xiaomi Redmi 9 can win Samsung s3 or not?
Now the phone unable remove battery, do you think the best phone still Samsung s3?
When you samsung a70 battery damaged, you able self change battery?
Thank you.
QUOTE(tctham @ Jan 25 2021, 06:26 PM)
i'm not sure if it is an oppo problem or same across other phones with minimal storage. but that oppo that i had, was 32Gb and the color OS version that it had, does not allow you to install apps in SD card.. you can only move selected data into SD card. and the OS itself, takes up some of the space. and other apps, such as whatsapp, actually consume a lot of space. even if you factory reset, you would have the original space, but as long as you download apps again, those apps will store data (cache and actual data). to live with that space issue, i had constantly clear items, and clear caches.. but eventually i ran out of space. if you keep your apps to bare minimum, you shud be able to survive a year or more.
i think future phones dun have this problem as most midrange comes with 64gb at least, and you can also install apps into SD cards.
I changed from samsung s3 -> oppo find 7a -> zte axon 7 -> samsung a70 (2019)
storage is relatively cheap (and it will get cheaper) and things will get "better" and will require more space to store HD this Full HD that and etc.. so the solution, is just to get as much space as you can afford. (dun need 512GB, but just get 128GB at least if you don't want to worry about storage issue)
i'm not sure how oppo behave, as my prev oppo phone, was the last of its kind with that color OS version, the next phone had a major version update (it's so major, that my old phone could not update to it.)