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LG Nexus 4 and Optimus G killer bug

K

KAB2010

macrumors 6502
Original poster
Aug 27, 2009
325
14
Louisiana
From doing a simple google search, as well as going through threads on xda forums, it appears both devices suffer from the same bug. Whether it affects all devices is questionable, but it is concerning. When on 3G (or HSPA+) the phone has an alarming amount of wakelocks, not allowing it to go into deep sleep. This results in massive battery drain.

I even tested the Optimus G for a few days and it was definitely present. There are threads for every version of the OG on XDA, and people are reporting the issue on each one. The Android OS is generally using up to 55-75% of the battery due to these wakelocks.

I returned the OG for the iPhone 5 because of this. No one seems to know whether its a software or hardware issue. I wish it would be fixed, cause I'd possibly keep the OG over the iPhone 5.
 
H

hyteckit

Guest
Jul 29, 2007
889
1
Nexus 4 running Android 4.2

1 hr and 49 mins of screen time. 9% battery life left.

nexus-4-battery3.jpg
 
Oletros

Oletros

macrumors 603
Jul 27, 2009
6,002
60
Premià de Mar
KAB2010 said:
From doing a simple google search, as well as going through threads on xda forums, it appears both devices suffer from the same bug. Whether it affects all devices is questionable, but it is concerning. When on 3G (or HSPA+) the phone has an alarming amount of wakelocks, not allowing it to go into deep sleep. This results in massive battery drain.

I even tested the Optimus G for a few days and it was definitely present. There are threads for every version of the OG on XDA, and people are reporting the issue on each one. The Android OS is generally using up to 55-75% of the battery due to these wakelocks.

I returned the OG for the iPhone 5 because of this. No one seems to know whether its a software or hardware issue. I wish it would be fixed, cause I'd possibly keep the OG over the iPhone 5.
Click to expand...


I don't have wakelocks
 
I

inselstudent

macrumors 6502a
Jul 27, 2012
617
4
Oletros said:
I don't have wakelocks
Click to expand...



Neither do I ..the screen is the main culprit for me when it comes to battery drain. I've installed juice defender and at the end of the day the screen is only responsible for about 35-40% of the drain now because I set the minimum brightness down to -60% of its usual minimum.
 
K

KAB2010

macrumors 6502
Original poster
Aug 27, 2009
325
14
Louisiana
Wirelessly posted

inselstudent said:
Oletros said:
I don't have wakelocks
Click to expand...



Neither do I ..the screen is the main culprit for me when it comes to battery drain. I've installed juice defender and at the end of the day the screen is only responsible for about 35-40% of the drain now because I set the minimum brightness down to -60% of its usual minimum.
Click to expand...

Well the screen should be using the most of course.. But these wake lock issues have absolutely destroyed the Optimus G to the point of causing me to return it. Again, only happens when you are not connected to LTE. The nexus 4 xda forum has had posts of the same issues, but it seems to be more widespread on the OG.
 
C

cynics

macrumors G4
Jan 8, 2012
11,959
2,156
I wonder what the phones are doing? I know email fetch will contribute to an iPhones usage time. Maybe it something like that?
 
ChazUK

ChazUK

macrumors 603
Feb 3, 2008
5,393
25
Essex (UK)
I'm not sure I'd I'm suffering this killer bug but my phone doesn't spend much time in deep sleep.
 

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C

cynics

macrumors G4
Jan 8, 2012
11,959
2,156
SlCKB0Y said:
Which is completely meaningless without knowing their usage patterns. But thanks for trying as usual!
Click to expand...

Unfortunately according to that pic the screen pretty much single handily did that. If say for example they were running a playstation emulator playing Gran Turismo you might expect battery usage like that but the emulator app would show up in the usage on the right hand side.

The thing that is very strange about that pic is there is NO app that is using power. To do that you'd have to never venture outside the OS itself. For example my browser app is pretty high on the battery usage list a lot of the time. I'd say there is something wrong there because essentially that phone was only used for a bit less then 2 hours plus phone calls which usually the screen is off but even that is low on the usage list.
 
blackhand1001

blackhand1001

macrumors 68030
Jan 6, 2009
2,600
37
The idle drain is not normal. Most likely kernel related. Android 4.2 is pretty buggy compared to 4.1.2. My verizon galaxy nexus on cm10 4.1.2 drains maybe a percent an hour during idle.
 
D

dalbir4444

macrumors 6502a
Oct 30, 2012
572
0
blackhand1001 said:
The idle drain is not normal. Most likely kernel related. Android 4.2 is pretty buggy compared to 4.1.2. My verizon galaxy nexus on cm10 4.1.2 drains maybe a percent an hour during idle.
Click to expand...

Some people are complaining that this is due to bugs in Android 4.2. That would be the best case scenario since at least it can be patched.

Also, you may want to try running JuiceDefender. It manages you wifi and data connection, so that they turn off automatically when idle.
 
H

hyteckit

Guest
Jul 29, 2007
889
1
Tips from other sites.

Turn off Google Now.
Turn off NFC.
Turn off Bluetooth
Turn off WiFi.

Kill off a bunch of services you don't need.
Reduce screen brightness to 15% to 30% of full brightness.
 
D

dalbir4444

macrumors 6502a
Oct 30, 2012
572
0
hyteckit said:
Tips from other sites.

Turn off Google Now.
Turn off NFC.
Turn off Bluetooth
Turn off WiFi.

Kill off a bunch of services you don't need.
Reduce screen brightness to 15% to 30% of full brightness.
Click to expand...

But it becomes a hassle to do all this manually. Unless you get an automation app like tasker. Then it's fine.
 
S

sixteen12

macrumors regular
Nov 14, 2011
222
1
hyteckit said:
Tips from other sites.

Turn off Google Now.
Turn off NFC.
Turn off Bluetooth
Turn off WiFi.

Kill off a bunch of services you don't need.
Reduce screen brightness to 15% to 30% of full brightness.
Click to expand...

So basically take all the new inovative features away and use it as a paper weight? Sweet.
 
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