S20 battery drain even after factory reset

[abduls91]

I was facing high battery drain issue since I bought this phone (Exynos version)

I did lot of things and tweaks but none solve this problem. So I did factory reset today and still it is taking 1% every 4 minutes. 

Dark mode enabled, 60hz, no auto sync, gps, no aod, nearby scanning off. 2g mode, wifi on

I don't know what should I do now. Kindly help me please. I don't want to bring it to service center because they will say phone is in normal condition only. 

[Ehsank]

did you do these settings if not then you can try these out

1. Connection>more connections settings> disable nearby device settings

2. Location>improve accuracy >disable
A. Wifi scanning
B. Bluetooth scanning .

3. Google >click on 3dot>usage and diagnostics >off this option

4. Long press on each app specially 3rd party(LIKE FACEBOOK, INSTA,YOUTUBE) and rarely used and ON "GOOGLE APP" as well then click on>app info> then go to these 3 options below on by one

A. Mobile data> allow background data usage>off

B. Battery >allow background activity >off

C. Notification >disable unnecessary notifications like promotional and unnecessary reminder notifications.

5. Device care>battery >select "optimised and adaptive power saving.

[Ehsank]

for e.g. see how much notification set3in google we don't need all of these, so just disable it

[abduls91]

I've done everything you said. let me see how it goes

[Ehsank]

ok but if it works for you then don't forget to ACCEPT AS SOLUTION BY CLICKING ON 3DOT AT MY COMMENTS

[Anonymous]

nothing to do except you flash your last firmware from Samsung service center or by Odin...samsung provides non A/B partition type Ota software not like other companies hence one and only proper and recommended method is to flash that firmware by Odin or through samsung service center or install software via smart switch otherwise simply mobile data or wifi creates software loop hole which produces this issues only which is never been recommended and proper process.....and if software hole presents in device then none of the tricks or tips will work except you re flash that firmware ....use smart switch or install software via samsung service center or Odin next time if you don't want to loose your device in future like note9 series ...software hole creates 👉 device lag,device over heat , poor game performance, poor camera performance, battery drain faster, ghost touch and many more issues by which this forum is full with......update software via mobile data or little fluctuate wifi never is correct and recommended method by the way especially in samsung device

[abduls91]

I don't want to reinstall and do the set-up again because it is annoying. if you are sure about this flashing, I'll definitely do it. how can I know that there is software loop exist?

[Anonymous]

then nothing to do ...simply update software via mobile data or wifi never been recommended as there is a chance to produce software loop hole... i greentree you do anything battery problem will not solved because software glitch present

[abduls91]

Can you refer me where can I get official firmware from samsung because I don't want to download from other websites because they might include malware into it.

[Anonymous]

visit service center for flash firmware as samsung use odin only as it's official software of samsung ..