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Jacobson53's profile

Tutor

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7 Messages

Thu, May 9, 2019 11:15 PM

Severe Android System battery drain after March update.

Using a Note 9 512GB

 

I've been having this issue for about two months now, Android System is taking up just as much of if not more battery than my display most days. It started after the March software update, I've tried clearing the cache partition, limiting the CPU to 70% with battery saver, turned on optimize battery settings, disabled most apps to use battery or data in the background, I've uninstalled Samsung pay to check if that was the problem, and lastly I've wiped the phone twice. Once with a backup and one restore from scratch. Still the drain is persisting. 

 

Anyone else experiencing this or have a solution? 

ATTHelp

Community Support

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172.5K Messages

2 y ago

Hello, @Jacobson53,

 

We'd love to help with this. Have you checked to see if the apps needed updating after the device update? If not, go into the app store, pick Menu (three dots)>My apps & games>Update ALL. If that doesn't slow the drain, place your Note 9 in Airplane Mode. This should give us an idea if an app is draining the device or if it's something else. If the device still loses it's charge quickly in Airplane Mode, let us know so that we can investigate further.

 

Have a great week!

 

James, AT&T Community Specialist

Tutor

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7 Messages

2 y ago

Apps are good, they auto update every night when I plug in the phone  and I check daily to make sure there aren't any that require new permissions which would require me to accept. All my software is up to date. I will try airplane mode for a bit tomorrow but I use my phone pretty often and that requires a data connection.

ATTHelp

Community Support

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172.5K Messages

2 y ago

Hello @Jacobson53.

Thanks for letting us know. Try Airplane mode and keep your eye on your battery use. Post back with an update.

Kenneth, AT&T Community Specialist

Tutor

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7 Messages

2 y ago

Tried for two hours yesterday, while I had much better battery life on Airplane Mode (obviously) android system still drained 3% compared to the screens 5% during the two hours. I played a movie on the phone during about a hour of the time so it wouldn't just be idling. My battery went from 100% to 88% during the two hours.

ATTHelp

Community Support

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172.5K Messages

2 y ago

Let's look into that for you, @Jacobson53!

 

Disabling services such as Bluetooth, LTE, and just about anything else you may not need is just one other step you can take to try to resolve your battery issue. To disable Bluetooth, simply perform the following steps:

 

  • From your Home screen, select Apps > Settings > Bluetooth.
  • Select the Bluetooth switch (located in the upper-right) to turn the indicator Off or On.

Our Device Support tool is an interactive portal which will provide instructions on how to stop or reset your remaining services.

 

We hope this info helps.

 

Lar, AT&T Community Specialist

Tutor

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7 Messages

2 y ago

I didn't buy a $1250 dollar phone to disable Bluetooth and LTE. I was hoping I could get some info from other members that might be experiencing the same issue. I think it's a software related issue specifically with AT&T phones updated to OneUI. 

Privetfla

Scholar

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285 Messages

2 y ago

I have same problem 😞😞😞

billsite34

Guru

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321 Messages

2 y ago

Try wiping the Cache Partition:

There are times when your phone has some firmware issues that you don’t really need to reset it. Wiping off contents of the cache partition may be enough to bring it to its usual operation. Wiping the cache partition will delete the system cache, which may have been corrupted for some reason. These files may be small and temporary but they may cause a lot of trouble to  your phone if they get corrupted or become obsolete. That’s why it’s advisable to wipe cache partition of your phone from time to time. And you don’t need to make a backup of your important files and data as they won’t be touched. Here’s how you do it:

  1. Turn off the device.
  2. Press and hold the Volume Up key and the Bixby key, then press and hold the Power key.
  3. When the Android logo displays, release all three keys.
  4. An ‘Installing system update’ message will show for 30 – 60 seconds before the Android system recovery menu options appear.
  5. Press the Volume down key several times to highlight wipe cache partition.
  6. Press Power key to select.
  7. Press the Volume down key to highlight yes, them and press the Power key to select.
  8. When the wipe cache partition is complete, Reboot system now is highlighted.
  9. Press the Power key to restart the device.

Your device may take a little while rebooting after doing this since it will rebuild deleted cache. Just wait for it to become active and then continue your observation to know if the problem still persists or got fixed.

Tutor

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7 Messages

2 y ago

I've wiped the cache partition, as stated in my first post. I've probably completed a partition wipe more than 10 times over the past two months.

GLIMMERMAN76

ACE - Expert

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22.4K Messages

2 y ago

@Jacobson53 

 

Backup the phone with Samsung Smartswitch and wipe it clean for a fresh install.  Check battery usage for a day.  Then restore your backup after you make sure all is good.  I know it takes time and energy and stinks to do BUT it will rule out the phone being the problem testing this way.

Tutor

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7 Messages

2 y ago

Please see my first post, I've completed a factory reset/backup using Samsung SmartSwitch and a factory reset from scratch.

GLIMMERMAN76

ACE - Expert

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22.4K Messages

2 y ago


@Jacobson53 wrote:

Please see my first post, I've completed a factory reset/backup using Samsung SmartSwitch and a factory reset from scratch.


You may have to have the phone reflashed at a Samsung repair center then.  Something went wrong with the update.

Tutor

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7 Messages

2 y ago

Would this be possible at an AT&T store or Best Buy? I don't have a Samsung Repair Center near me that I can find. 

GLIMMERMAN76

ACE - Expert

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22.4K Messages

2 y ago


@Jacobson53 wrote:

Would this be possible at an AT&T store or Best Buy? I don't have a Samsung Repair Center near me that I can find. 


BB no longer has Sammy experience reps.  I have no clue where your at in IL but here is the website for Samsungs new partner https://www.ubreakifix.com/

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