Develop Bugs

Battery effiecient settings tips for our 1X (May help some with battery problem)

I am on Stock Rom (Forgot to mention this)
I average about 3.30 hours of screen time with my settings everyday, today I had 4.30 hours, 1.4 Internet surfing, 30 min voice calls, and 12 hours of wifi, total time 22.54 hours.
This is my best so far: http://forum.xda-developers.com/show...79392&page=114 (I think I can reach better results (Have better average results now)
Also please feel free to share your settings.
My settings:
Unlocked and rooted.
LED Notifications off (except for SMS).
Fastboot in power settings unticket.
Sound Settings - Turned sensors Off: Quiet ring on pick up, Pocket mode, Flip for speaker.
Brightness Control using this app: https://play.google.com/store/apps/d...rightnesslevel (I mostly leave it at 15% its more than enough for my vision at least, then if out and its really sunny I just switch to 50% its a widget so its easy to use).
All vibration settings,haptic feedback and stuff off(except for phone calls).
All auto-sync off (everything updates when you enter it like email and weather and others so no need to be on).
All animations Off (you won't notice any difference after awhile so it might as well be off).
Phone dial,keyboard and other tones off.
In developer options-> Background process limit set to 3. (Reverts after reboot/restart)
Using Core Control, can be found here (Must be rooted) http://forum.xda-developers.com/show....php?t=1652136 and I have it set to 2 cores. (Reverts after reboot/restart)
Have the backlights on the 3 capacitive buttons on the bottom off at all times using Tasker using a mod made by backfromthestorm, credits go to him and nobnut, mod can be found here: http://forum.xda-developers.com/show...1657619&page=3 (Reverts after reboot/restart).
Another mod from backfromthestorm (which can be found in the link above aswell)is better multi-tasking which changes the values in sys/module/lowmemorykiller/parameters/minfree file to 1536,2048,3584,5120,15360,20480, I set the values using Tasker. (Reverts after reboot/restart).
Another thing I do before going to sleep or not going to use the phone for a few hours is I use the built in app Task Manager's and kill all tasks and then turn the screen off, by doing this I have noticed that battery percentage doesn't mysteriously drop without using it.
Can't remember what other settings I may have at the moment but will add if memory allows
I have frozen the following apps and others:
I thought this way would be quicker and easier, I hope at least excuse my laziness otherwise
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"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
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"lightbox_toggle_sidebar": "Toggle sidebar"
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Old thread copied and up with moderators consent.
Old thread was closed due to pointless flaming.
Old thread could not be re-opened so I copied the contents, I hope people that comment here keep it clean and to the subject.
Decent stats:

This was pretty much hardcore non-stop usage.
This was pretty much not letting the phone rest from the moment it finished charging.
Will do some video tests later to see how long it can last while watching some HD flicks.

Apps in first in screens post are all frozen?

stifler05 said:
Apps in first in screens post are all frozen?
Click to expand...
Click to collapse
I have frozen the following apps and others:
Click to expand...
Click to collapse
yes mate

Goku80 said:
yes mate
Click to expand...
Click to collapse
Thank mate.
Always have to be sure 100%

Thanks for all the tweaks, I have never had more than 2.5 hour screen time. Ill shall now use some of your settings to mix my own frozen yogurt (edit Ice Cream yogurt) . So far CM9 seems to be my bag, but I bought the phone for the camera...

Very useful thread, thanks
Just one thing though, the LEDs used for the LED Notifications use so little power that you can leave them enabled and it will drain next to no power at all! Not sure about the capacitive LEDs though, I can't imagine they use much power either!

Meltus said:
Very useful thread, thanks
Just one thing though, the LEDs used for the LED Notifications use so little power that you can leave them enabled and it will drain next to no power at all! Not sure about the capacitive LEDs though, I can't imagine they use much power either!
Click to expand...
Click to collapse
You are welcome, yeah I know that the LEDs may not save much battery at all but one thing I like about the capacitive lights is that I have the options as widget shortcuts on my screen so I can turn them on when I feel like I need them, but most of the time I keep them off

dondavis007 said:
Thanks for all the tweaks, I have never had more than 2.5 hour screen time. Ill shall now use some of your settings to mix my own frozen yogurt (edit Ice Cream yogurt) . So far CM9 seems to be my bag, but I bought the phone for the camera...
Click to expand...
Click to collapse
You are welcome and I hope it helps.
Cheers

Will give these tips a try. Quite a lot of cutting here, kind of reminds me of what David Cameron is doing to the UK economy to save money
Sent from my HTC One X using xda premium

thanks Johnny0906, wow just got the phone and that info is priceless.. Thanks

Thanks at first since it's a piece of useful information.
But I can't keep myself wondering. what do you use this phone for since almost everthing is frozen.

[APP] Standby Touch - simple app for a simple job

Warning! This has been developed and tested on Galaxy Nexus. It should work fine on SIII, but have a backup, just in case something goes wrong (can't imagine what)
Today I got a little bit bored and decide to make this simple app. As the name says, it allows to put the phone in Standby (Lock) with the touch of app's icon. I know that there are many many apps that do this, but maybe in the future I could add other options to it. So far it seems to work fine, I tested it with Jellbro latest nightly and works like a charm. Maybe I am too lazy, but because my phone is on the desk most of the day, I find it not very convenient to press the Power button...
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"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Changelog for version 1.4:
1.4
- added Tasks feature
- on some ROM versions the screen my try to turn itself on again after lock, the app will double check and try to lock it again. Please provide feedback if it still does not work.
- minor graphic tweaks
You can find it on Google Play at: https://play.google.com/store/apps/details?id=com.alinberce.standbytouch
Feel free to give me suggestions . Also a high rating on Google Play would help. Thanks.

I am using the app and haven't got any "wake screen" events. So hopefully works as expected.
I was thinking of a feature:
1. set an interval in seconds, let's say 60
2. set in the app, Enable touch screen to wake
3. in you press the screen on this interval, the phone awakes.
This of course with the cost of battery life....
What do you say, is is useful or not ?

works but not exactly like power button .
screen flashes white for a couple ms
but like the other functions
(just wondering whether you make a setting so you can choose whether or not to put device into deep sleep ) prob stupid function coz u always want ur device to go into deep sleep when screen off
thanks
Sent from my GT-I9300 using xda premium

No flashes for me, screen goes immediately off when i press icon, nice Ui look good also. I made swipe gesture to nova launcher, when i swipe up with 2 fingers, screen goes off.
Thanks.

on uninstalling my phone does not autolock anymore, neither does the screen time out, tried on ics, not happy with that, also with the software it would lock the phone on toggling but however it would not turn the screen off, not pretty happy.

@cletusarrarr I am sorry but I can't understand what you said. The app has nothing to do with screen time out or any other system settings.

May I ask what you use for the circle selector ?
Looks great

Thanks @Tolriq... the circle ideas came to me sudden and I've made it from scratch. There is no control I've used. Basically there are 2 custom views, a smaller one with the hour circle and a bigger one with the minutes circles, with some touch and rotation events. Glad you like it, I haven't seen anything like it in any other app. Somehow I think that there are still tweaks to be made, maybe, sometimes it's easy to go wrong by pressing unintentionally on the other one.

Thx! 5 star given!
But still sometimes the screen come back briefly b4 it locks again. I read comments in screen off fx that it doesn't hv this problem on s3. Maybe u can check it out if u hv time. Meanwhile I really enjoy ur work coz the design of the icon is so cool!
Sent from my GT-I9300 using xda app-developers app

I have encountered this screen shown in some ROMs, in another it didn't appear (this on my Galaxy Nexus). The app only accesses a standard android function to lock the screen, without any bells and whistles. I could not find why it was happening like that, so I just try to make a relock after half of a second (just in case the screen turns on).
Thank you very much for your kind workds.

It's perfect. Love the simplicity of the icon.
Sent from my GT-I9300 using Tapatalk 2

Thanks a lot. If you guys have any ideas for features, please let me know.

I've just released a new version in the market. Unfortunatelly it does not have new features as I've been really busy in the last few months but includes two important things:
- there is no more white screen + app's icon when pressing the app's icon, just before the screen shuts down
- I added compatibility with JB 4.2
https://play.google.com/store/apps/details?id=com.alinberce.standbytouch

I have also released a refreshed version of my babies app, I'd love to hear some feedback from those of you who have small babies (1 to 3 years old):
http://forum.xda-developers.com/showthread.php?p=34258314#post34258314

Hi guys,
I have released a new version of the app. I have removed the Tasks feature as it wasn't too helpful and added Sleep Mode. So basically, the Sleep Mode shows for a brief moment (the time you set in Settings) 2 icons which allows you to switch off Sound/Wi-Fi/Data.
Here is how it works:
1. Go to Settings -> Zzzzzz Mode -> Set the interval in hours when you want the icons to be displayed. Set the milliseconds to be displayed and check the toggles you want to disable
2. Next time you press the StandBy icon you will see 2 icons on the screen. The moon icon puts the phone to standby and toggles off the checked things from settings. The sun icon, simply turns them on again and closes, without going into standby.
Any feedback is gladly received.

[SUPPORT][JB] CM10, BattOptimization

This Thread is for Optimizing your Battery Life for the ongoing CM10 builds by Quarx, and for my nagging questions.
First you should read about your Battery, and how it calibrates here.
http://forum.xda-developers.com/showthread.php?t=1778492
then I recommend this older Thread of a guy who managed to squeeze out 6 days of juice from his Defy
http://forum.xda-developers.com/showthread.php?t=1022390
His approach is very simple; LessIsMore: no sync, no mobile Data, no widgets, no GPS, bare minimum Apps....
I tried that with Quarx builds, and of course it works. The Downside is, there`s no more shiny stuff on my phone. The good thing apart from increased Battery Life, the OS becomes very fast and a great Testgadget for Quarx work in a minimal environment.
But from here I`d like to dig deeper, and get more Power:
Which System APP`s can be deleted whithout Problems? (I started with trebuchet (nova Launcher) that gives 10MB)
Do you now good alternative APP`s with a low Energy Footprint?
Do you use your phone in any special Battery efficient way? (I have all my non super important APP`s stored as backups with Titanium Backup, and restore them when needed)
WLAN always on?
What other things help with Battery Life on CM10 Jelly Bean?

qx876 said:
This Thread is for Optimizing your Battery Life for the ongoing CM10 builds by Quarx, and for my nagging questions.
First you should read about your Battery, and how it calibrates here.
http://forum.xda-developers.com/showthread.php?t=1778492
then I recommend this older Thread of a guy who managed to squeeze out 6 days of juice from his Defy
http://forum.xda-developers.com/showthread.php?t=1022390
His approach is very simple; LessIsMore: no sync, no mobile Data, no widgets, no GPS, bare minimum Apps....
I tried that with Quarx builds, and of course it works. The Downside is, there`s no more shiny stuff on my phone. The good thing apart from increased Battery Life, the OS becomes very fast and a great Testgadget for Quarx work in a minimal environment.
But from here I`d like to dig deeper, and get more Power:
Which System APP`s can be deleted whithout Problems? (I started with trebuchet (nova Launcher) that gives 10MB)
Do you now good alternative APP`s with a low Energy Footprint?
Do you use your phone in any special Battery efficient way? (I have all my non super important APP`s stored as backups with Titanium Backup, and restore them when needed)
WLAN always on?
What other things help with Battery Life on CM10 Jelly Bean?
Click to expand...
Click to collapse
If LessIsMore, in the way you described it, is the way to go for better battery performance, it will be much more efficient to abandon SMART Phones all together and go back to NOKIA Age.
In today time (21st century) we need to be connected to the net and cloud AT ALL TIME therefore there must be other solution about batteries. Either bigger capacities (RAZR MAXX) or optimized software.
Quarx and the rest from XDA or CM can not help with the hardware (Big capacity batteries) but could optimized the software. I am aware that everyone has different requirement/need BUT there must be a point to start from (may be at least 8 hours (while on work) 3G DATA On (messaging, e-mails), All the goodies (screen related fancy widget, etc.) some Browsing, some Music/Radio) until back home.
And so say (for example): Quarx Rom v.X is out now (and you will be sure that by this set of min. requirement) it will last for at least while on work (typically 8 hours)
It will eliminate half of the question here about "Battery drain and how to overcome it"
At least that is the way I think about all this issues.

Buy more mAH battery
Sent from my MB526 using xda premium

I'd suggest grabbing this battery:
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I'm not too battery efficient but I am curious as to what I can tweek in the display settings since most of it has some alien jargon. i.e. the Light Sensor Levels...

Ok, here's my current setup I'm reading for battery savings. I think it sets a good balance between efficiency and usability. I'm using Llama to automate all of this.
Data switches on when the phone is unlocked and switches off 2 min after screen off. If I'm at home, the WiFi also switches on with the same settings. When WiFi is connected, data switches off.
When mobile data is on, 2G/3G is on. When the screen turns off or when the WiFi is connected, 2G only.
Sync is disabled, but every hour the mobile data is enabled and it turns on sync and requests update.
I've mucked around with custom auto brightness levels and vsel values as well, and it automatically sets to vsel1 when the screen is off.
Here is my usage from yesterday. This included about 50 min of voice calls.
Sent from my Jelly Bean powered Motorola Defy

The screen, and specifically the backlight are major battery hogs.
With this in mind, I'd suggest, if you use your phone mostly at night (like me) then even minimum brightness can be too much...
Use an app like Screen Filter to reduce your brightness levels right up to 0% backlight.
I use the light sensor levels in the day, and at night, when I find the screen a bit too bright, I switch to the lowest sensor level and add a filter of up to 54% or 72%, as need be.
Doing this, I've noticed that screen related battery consumption goes down from 90% with screen continuously on to ~75%.
Check it out:
https://play.google.com/store/apps/details?id=com.haxor&hl=en

How about this
h t t p://4pda.ru/forum/index.php?showtopic=359221&view=findpost&p=16625420
11 days on Qkernel

krushnam said:
The screen, and specifically the backlight are major battery hogs.
Click to expand...
Click to collapse
Can someone share his experience with the sensor levels for the automatic brightness? Also maybe for the other 'automatic brightness' values ..
... apart of the fact that the number of stages has to be changed to save values in the current Quarx Rom
T'x

entropicAlchemist said:
Ok, here's my current setup I'm reading for battery savings. I think it sets a good balance between efficiency and usability. I'm using Llama to automate all of this.
Data switches on when the phone is unlocked and switches off 2 min after screen off. If I'm at home, the WiFi also switches on with the same settings. When WiFi is connected, data switches off.
When mobile data is on, 2G/3G is on. When the screen turns off or when the WiFi is connected, 2G only.
Sync is disabled, but every hour the mobile data is enabled and it turns on sync and requests update.
I've mucked around with custom auto brightness levels and vsel values as well, and it automatically sets to vsel1 when the screen is off.
Here is my usage from yesterday. This included about 50 min of voice calls.
Sent from my Jelly Bean powered Motorola Defy
Click to expand...
Click to collapse
I love my Llama!
I've been looking for something like this since I left the factory supplied motoblur eclair which had some simple data management functions built in. There are literally hundreds of different actions and conditions to personalise. This is sure to extend battery life.
One question. Have you noticed if the app itself uses much battery?
Thanks for sharing... everyone needs a Llama!
MB526 CM10'd by QUARX

jonesy17 said:
One question. Have you noticed if the app itself uses much battery?
Click to expand...
Click to collapse
The power usage is really minimal. The location method uses the cell id of the tower you are connected to, so does not use additional battery like the Google Location Service or GPS.
Llama is definitely in my shortlist for favorite app.
Also, one of the latest beta release has a profile sharing feature. If I can figure that out I might post some of my profiles.
Sent from my Jelly Bean powered Motorola Defy

Thanks...

[Tool] "Efficency Mode" and Battery-Mod Info for Custom Roms

mcs was renamed to acc
MCS Info, or Horrible Hack based on the Android N Quick Settings Codelab
(mostly relevant for Moto Z... users)
I'm using mcs for "efficency-mode" In the default settings mcs will charge the battery if its lower than 80% and only up to 90% charge.
https://github.com/Magisk-Modules-Repo/Magic-Charging-Switch
This is a small app to make using it more pleasant.
It has a main-view that will show the battery and service status of mcs.
And a tile to toggle the mcs-state.
normal tile means that mcs is active
tile greyed out means that normal charging is enabled
This tile will also show the charge of my Incipio Battery Mod when its connected. When the mod is charging the battery the icon will change accordingly.
Long pressing the tile will open the main app.
Features
show MCS and Battery Info
tile: toggle mcs-active / charging
tile: show mod charge
tile: show whether the mod is charging the battery
tile: long press to open main app
Needs
mcs installed https://github.com/Magisk-Modules-Repo/Magic-Charging-Switch
root
Bugs
Will crash when no rootaccess is given (I will probably never fix that)
Release: https://github.com/Spoil001/mcs-Info/releases
Sources: https://github.com/Spoil001/mcs-Info
Screenshots
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New release:
- now compatible to acc 2018-12-24
History:
v. 1.0
- compatible to mcs 2018-07-24
---
- now compatible to mcs 2018-08-08

Thanks for the app its working really well but i have a question, if i run "mcs 80 75" via terminal emulator and use your app only to check mod battery level would it cause any problems?

heithered said:
Thanks for the app its working really well but i have a question, if i run "mcs 80 75" via terminal emulator and use your app only to check mod battery level would it cause any problems?
Click to expand...
Click to collapse
no, that should work fine.

Benni:) said:
New release:
now compatible to mcs 2018-08-08
History:
v. 1.0
- compatible to mcs 2018-07-24
Click to expand...
Click to collapse
If you plan to move this project further, it's a good time to work on supporting the beta channel. Current status is "good enough as a dairy driver" and the current stable may soon be replaced.

VR25 said:
If you plan to move this project further, it's a good time to work on supporting the beta channel. Current status is "good enough as a dairy driver" and the current stable may soon be replaced.
Click to expand...
Click to collapse
I know about the beta channel, but didn't find the time to play with it, yet.
Does the beta still have the same limit logic?
Then I'll just have to change three lines ?

Benni:) said:
I know about the beta channel, but didn't find the time to play with it, yet.
Does the beta still have the same limit logic?
Then I'll just have to change three lines ?
Click to expand...
Click to collapse
Lol
Yes, it's basically the same.
...But there are new features for pushing battery lifespan even further.

Benni:) said:
New release:
now compatible to mcs 2018-08-08
History:
v. 1.0
- compatible to mcs 2018-07-24
Click to expand...
Click to collapse
its a great job, its really useful, do yo have plans for updating to the new version 2018.12.18 (201812180)?
[acc] Non-interactive shell support
[accd] Always overwrite charging switch.
[accd] Higher coolDown sensitivity
[accd] Make sure the number of running instances is at most one.
[accd] More efficient log size watchdog
[accd] Pause execution until data is decrypted.
[General] Rearranged charging switches to accommodate newer devices, such as the OnePlus 6/6T. Reports suggest that these don't work correctly with .../battery/charging_enabled.
[Installer] When updating config.txt, try patching relevant lines only, instead of overwriting the whole file.

ErikEBZ said:
its a great job, its really useful, do yo have plans for updating to the new version 2018.12.18 (201812180)?
[acc] Non-interactive shell support
[accd] Always overwrite charging switch.
[accd] Higher coolDown sensitivity
[accd] Make sure the number of running instances is at most one.
[accd] More efficient log size watchdog
[accd] Pause execution until data is decrypted.
[General] Rearranged charging switches to accommodate newer devices, such as the OnePlus 6/6T. Reports suggest that these don't work correctly with .../battery/charging_enabled.
[Installer] When updating config.txt, try patching relevant lines only, instead of overwriting the whole file.
Click to expand...
Click to collapse
the plan is to update during the holidays.

New version is online.
Have fun: https://github.com/Spoil001/mcs-Info/releases/tag/2018-12-22
ErikEBZ said:
its a great job, its really useful, do yo have plans for updating to the new version 2018.12.18 (201812180)?
[acc] Non-interactive shell support
[accd] Always overwrite charging switch.
[accd] Higher coolDown sensitivity
[accd] Make sure the number of running instances is at most one.
[accd] More efficient log size watchdog
[accd] Pause execution until data is decrypted.
[General] Rearranged charging switches to accommodate newer devices, such as the OnePlus 6/6T. Reports suggest that these don't work correctly with .../battery/charging_enabled.
[Installer] When updating config.txt, try patching relevant lines only, instead of overwriting the whole file.
Click to expand...
Click to collapse

Benni:) said:
New version is online.
Have fun: https://github.com/Spoil001/mcs-Info/releases/tag/2018-12-22
Click to expand...
Click to collapse
Hi, i see you update this tool, i installed it to test it but the only info i get in the app is this:
is this normal?
Actually i'm using this version 2018.12.26.1 (201812261), i tried to search for 2018.12.22 (201812220) but i could not get it.

Yes, the information is normal. (screenshots are from mcs)
Mod and service status is only in the quicksettings-tile.
ErikEBZ said:
Hi, i see you update this tool, i installed it to test it but the only info i get in the app is this:
is this normal?
Actually i'm using this version 2018.12.26.1 (201812261), i tried to search for 2018.12.22 (201812220) but i could not get it.
Click to expand...
Click to collapse

Not working on lineage 16.

Not receiving notifcations/Receiving them late - Note 10+/Exynos

Hey guys.
I have been using this phone for a number of days, and it seems like ever since I activated a battery saving option which I can't seem to single out, I stopped receiving notification when the phone is locked and/or I'm receiving them with a delay. receiving
I'm also having a problem with things that requires the phone to have an active data/wi-f- connection when locked, like WhatsApp Web or Google photos backup.
There is no data/wi-fi saving or limiting option enabled. I specifically added gmail, whatsapp and other app that I wish to receive lock notifications from to the "Not optimized" list.
I'm attaching my battery settings screenshots for reference.
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"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
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"lightbox_share": "Share",
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I would really appreciate your help.
Thanks.

This issue is old for like 2 years now.
Happening in my note 8, 9 and now 10.
Not a single solution that will work.

I'm having the same problem. Never had it before

Follow these steps! I found my Zedge app that controls my custom notifications in the 'Sleeping Apps' container. Once I removed the app, all my notifications started working again.

discothan said:
Follow these steps! I found my Zedge app that controls my custom notifications in the 'Sleeping Apps' container. Once I removed the app, all my notifications started working again.
Click to expand...
Click to collapse
You posted a link to fantasy football, might want to check it and edit your post.

discothan said:
Follow these steps! I found my Zedge app that controls my custom notifications in the 'Sleeping Apps' container. Once I removed the app, all my notifications started working again.
Click to expand...
Click to collapse
I have Zedge installed but I didn't give it notification access. Your link is wrong :silly:

I had a similar issue with delayed notifications on my S10+ and turning off Adaptive battery helped. You can also try that and pls do post back if it helps. Thanks.

Having the same issues here: https://forum.xda-developers.com/galaxy-note-10+/help/apps-updating-phone-t3962558

It looks like disabling Adaptive Battery helped a bit, but it is still not perfect. In addition, I don't understand why adding the specific apps to the "Not Optimized" list does not affect anything.

RedsonRising said:
You posted a link to fantasy football, might want to check it and edit your post.
Click to expand...
Click to collapse
liamR said:
I have Zedge installed but I didn't give it notification access. Your link is wrong :silly:
Click to expand...
Click to collapse
SteveyJack said:
Having the same issues here: https://forum.xda-developers.com/galaxy-note-10+/help/apps-updating-phone-t3962558
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Sorry about that errant link to Fantasy Football.
Here is the link to follow to remove Apps that Adaptive Battery settings put in 'jail' so they won't ever run in the background.
Promise its not Fantasy Football but steps to help fix notifications/slowness

I don't think it's anything to do with adaptive battery.
If you go into the developer menu and down to the bottom there is an option standby apps. Once in there you'll see apps listed, if they're set to ACTIVE they are allowed to do what they like. Even with full battery optimisation set Gmail is always ACTIVE and is still having issues. I think it's actually an issue with the phone going into some kind of standby mode. Sometimes it does and therefore notifications are off and sometimes it doesn't and everything is fine.

I tried everything mentioned here and it seems to work for about one day and then the delay was back (especially in WhatsApp).

SteveyJack said:
I don't think it's anything to do with adaptive battery.
If you go into the developer menu and down to the bottom there is an option standby apps. Once in there you'll see apps listed, if they're set to ACTIVE they are allowed to do what they like. Even with full battery optimisation set Gmail is always ACTIVE and is still having issues. I think it's actually an issue with the phone going into some kind of standby mode. Sometimes it does and therefore notifications are off and sometimes it doesn't and everything is fine.
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Further to this, it doesn't seem to be an issue when the device is charging so presumably thats keeping something alive.

This thread has been inactive for weeks but I think this problem still exists. A Google search for "lockscreen notification delay" brings up a number of reports from various Samsung, Oneplus and other Android users - but still no single solution.
For a while I did not even think I had the problem because it does not appear unless your phone is inactive for about 10-15 minutes.
The problem appears to have something to do with changes to Optimize Battery Settings not sticking.
I found a workaround but it has to be done everytime the phone is rebooted.
- Under Optimize Battery Usage make sure that Whatsapp,Gmail or whatever notification app is being delayed is NOT Optimized
- Use the ADB command "adb shell dumpsys deviceidle disable". This has to be done from a computer with the phone connected to it. Or if you have root you can run it directly from the phone using Terminal Emulator.
Somebody from the Oneplus forums has also created a Magisk Module that appears to work on Samsung phones. You can find it in post #65 here: https://forum.xda-developers.com/oneplus-6t/how-to/guide-notification-fix-100-t3865551/page7
Is this the only way to fix this or has somebody found a better way?

At first, when I downloaded, installed, put the accounts, and all pertinent stuff, I observed this problem, no mails and no whatsapps until waking the device, or worst, had to enter the apps, but, I found the above solutions/steps, and, everything is working fine since Sept 13th, no delays, all working fine, even battery life is really good

I've got the issue only when activating moderate power save.
I set none app in the optimise wishlist.

Nastrahl said:
I've got the issue only when activating moderate power save.
I set none app in the optimise wishlist.
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The moderate power save also caused issues with late notifications on my device. I've only turned it on to test it but even after putting back to optimised and/or high mode did not rectify the issue. Somehow, few days later, I've managed to correct it but I've done so many changes that I've no idea how or what fixed it.

I had this issue on my S10 + to particularly with whatsapp! Messages would come in delayed or i just wouldnt get the notification for some reason! I never figured it out unfortunately but thankfully it seems to be ok on my note 10 + which is strange because i literally have this device set up EXACTLY the same as my S10 + in terms of settings etc ! If i remember correctly however, My S10+ didnt have this issue at the beginning!