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Question MIUI 12.5.5.0 battery drain

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xtremesystems

Senior Member
Mar 11, 2012
137
29
Redmi K20 Pro
Xiaomi Mi 11 Lite 5G
Good or Bad?
Screenshot_2021-10-02-20-22-39-954_com.miui.securitycenter.jpg
 
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Stickola

Senior Member
Sep 11, 2021
60
15
In general, bad. 4,5 hrs of sot is not what this device with a battery this big was aiming for. Everyone should have at least 6hrs.
This is my 7th Xiaomi phone with the worst sot possible. I'm downgrading to the first fw asap
Same here, fella! Pretty sure it's miui 12.5's fault. We'll see...
 

motokenny

Senior Member
Feb 2, 2014
93
50
IMG_20211003_184831.jpg


This is interesting. I was at home all day, only used wifi. 3hrs sot so far with 60% battery left. This is on 12.5.5 update.
So it's rapidly draining on cellular data.
I'm still investigating the real issue here.
 

ilidari

Member
Apr 9, 2020
11
5
I can also confirm that battery is draining rapidly on cellular data.
On WiFi it is very normal
Is there some new information about this? There must be a reason.
I tried switching form 5G-4g-3g.. its the same

edit: now I am testing diffirent preeferred network type in *#*#4636#*#* menu, because I dont have 5g yet in my country and phone keeps scanning for it.. thats my theroy for now
 
Last edited:

motokenny

Senior Member
Feb 2, 2014
93
50
I can also confirm that battery is draining rapidly on cellular data.
On WiFi it is very normal
Is there some new information about this? There must be a reason.
I tried switching form 5G-4g-3g.. its the same

edit: now I am testing diffirent preeferred network type in *#*#4636#*#* menu, because I dont have 5g yet in my country and phone keeps scanning for it.. thats my theroy for now

Confirmed. Around 6hrs sot on wifi, and 4hrs on cellular/wifi mixed.
 

JSR_FR

Member
Jul 22, 2021
7
1
I had a big battery drain when i had the 5G enabled. I switched to 3G/4G max and the battery usage bacame more normal.
 

ilidari

Member
Apr 9, 2020
11
5
I think I'm onto something. Disabling 5G in settings doesnt really disable 5G, and phone is still trying to find 5G network and thats causing battery drain.
I confirmed that after disabeling 5G in settings and entering *#*#4636#*#* menu
Preferred network type was set to NR(5G).
So I selected GSM/WCDMA/LTE (PRL) network type , and battery drain is gone.
Problem is that every reboot that settings also resets, and any change in network settings changes it back.

If someone else can also test it it would be good

To test:
In phone menu dial *#*#4636#*#*
Go to Phone information 1 or 2 (depends of your sim slot)
Click on Set preferred network type (and see if NR is enabled)
Select GSM/WCDMA/LTE (PRL)
Thats it

And try using your phone for 1 day
 
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Stickola

Senior Member
Sep 11, 2021
60
15
I think I'm onto something. Disabling 5G in settings doesnt really disable 5G, and phone is still trying to find 5G network and thats causing battery drain.
I confirmed that after disabeling 5G in settings and entering *#*#4636#*#* menu
Preferred network type was set to NR(5G).
So I selected GSM/WCDMA/LTE (PRL) network type , and battery drain is gone.
Problem is that every reboot that settings also resets, and any change in network settings changes it back.

If someone else can also test it it would be good

To test:
In phone menu dial *#*#4636#*#*
Go to Phone information 1 or 2 (depends of your sim slot)
Click on Set preferred network type (and see if NR is enabled)
Select GSM/WCDMA/LTE (PRL)
Thats it

And try using your phone for 1 day
I personally had no luck with this, mine was already set to " GSM/WCDMA/LTE (PRL) " and my drain is still big, specialy Android System usage drain. I hope you'll have different expeirence than i do! Good luck.
 
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ilidari

Member
Apr 9, 2020
11
5
I personally had no luck with this, mine was already set to " GSM/WCDMA/LTE (PRL) " and my drain is still big, specialy Android System usage drain. I hope you'll have different expeirence than i do! Good luck.
Maybe to me its only placebo effect, I need to test it more
But disabling 5G definitely increases battery life, not much but it does
 
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    I can also confirm that battery is draining rapidly on cellular data.
    On WiFi it is very normal
    Is there some new information about this? There must be a reason.
    I tried switching form 5G-4g-3g.. its the same

    edit: now I am testing diffirent preeferred network type in *#*#4636#*#* menu, because I dont have 5g yet in my country and phone keeps scanning for it.. thats my theroy for now

    Confirmed. Around 6hrs sot on wifi, and 4hrs on cellular/wifi mixed.
    3
    IMG_20211003_184831.jpg


    This is interesting. I was at home all day, only used wifi. 3hrs sot so far with 60% battery left. This is on 12.5.5 update.
    So it's rapidly draining on cellular data.
    I'm still investigating the real issue here.
    2
    Was on 12.5.5 too and didnt think too much of it until I saw this post.
    Was getting barely 3.5 hrs ending at around 12%. Running phone at 90hz
    Sometimes I would just charge it mid-day to get some juice.

    Had a tough time trying to downgrade to 12.0.2 but finally did and battery I think is alot better.

    1632937773843.png
    2
    I think I'm onto something. Disabling 5G in settings doesnt really disable 5G, and phone is still trying to find 5G network and thats causing battery drain.
    I confirmed that after disabeling 5G in settings and entering *#*#4636#*#* menu
    Preferred network type was set to NR(5G).
    So I selected GSM/WCDMA/LTE (PRL) network type , and battery drain is gone.
    Problem is that every reboot that settings also resets, and any change in network settings changes it back.

    If someone else can also test it it would be good

    To test:
    In phone menu dial *#*#4636#*#*
    Go to Phone information 1 or 2 (depends of your sim slot)
    Click on Set preferred network type (and see if NR is enabled)
    Select GSM/WCDMA/LTE (PRL)
    Thats it

    And try using your phone for 1 day
    1
    Hello! I just bought recently this beautifull phone, I adore everything about it, except - the battery. When I 1st turned it on, it found an update 3,2GB and I applied it, 12.5.5.0 Global. I wonder if I did a mistake, maybe MIUI 12 was better.
    Batt drain is huge when idle, 10 or more % overnight.
    Gsam app (with adb permissions) says screen and system() are the highest per consumption.
    Should I install eu rom (which)?
    I'm on 12.5.5.0 and have no battery drain in idle.

    Maybe you have to do some background settings.