OK, so I'm backup to Nougat, battery drain was to high with Oreo.
Thank you for nothing Samsung. I sware that if this issue is not solved very soon my next mobile will be LG or Huawei.
I guess the battery drain with Oreo was fixed on S8 and S9, so there's a pretty good chance that it will be fixed on the S7 too. However, not fixing it would be ridiculous, as it is clearly an issue of the firmware.
first i wrote through the samsung members app and they told me to connect to webchat someone but that person just told me to erase the cache or factory reset and redirected me for rma near me
you can keep pushing guys through the samsung members app post a screenshot and explain in detail
also on the webchat because they will respond to you for sure
and say that you are not the only one but lots of us and redirect them to this or any other forum with this issue
the more of us report it they will do something about it
If you don't know the origin of the problem, you can't fix it. Anyways, Samsung doesn't publish source code, except the kernel, and probably S8 and S9 have a very different kernel compared to S7 to identify if it's related to that. It's impossible to make changes if we haven't got any sources.
How did you limit the mobile data for settings?
When I get into the mobile data used by settings, it just give me a list of all process linked to settings, and I can't do anything about it.