Latest product reviews
ARCHOS 50 Diamond
ARCHOS GamePad2
ARCHOS
Smartphones
ARCHOS
TV Connect
ARCHOS 101 XS

A A A
Avatar

Please consider registering
Guest

Search

— Forum Scope —






— Match —





— Forum Options —





Minimum search word length is 3 characters - maximum search word length is 84 characters

Register Lost password?

ClockworkMod (CWM) Recovery easy install for RK3066 and RK3188 -- TWRP/CWM Flash-Tool and root for RK3288

 Please donate to support OMA and CrewRKTablets firmware work, thank you !

sp_Feed sp_TopicIcon
KitKat 4.4.2 Kasty ROM and battery drain
Avatar
DarthJabba

Contributor
Forum Posts: 551
Member Since:
2013/04/23
sp_UserOfflineSmall Offline

Thanks Received: 396
1
2014/01/31 - 20:52
sp_Permalink sp_Print

For those with expert eyes, below are some screenshots from Wakelock Detector which shows what has been going on during standly (mostly). Perhaps someone can interpret this data to detect where exactly the problem is with battery drain?

PS: I also downloaded an app called Greenify which I used to hibernate some apps (see the greenify screenshot below) - this has resulted in a noticeable decrease in battery drain - but it is still too much.

greenify.pngImage Enlargerkernel_wakelocks.pngImage Enlargercpu_wakelocks.pngImage Enlargerwakelock_triggers.pngImage Enlarger

sp_PlupAttachments Attachments

Darth Jabba, the Dark Jedi from Nal Hutta

Avatar
Burs
Advanced Member
Forum Posts: 144
Member Since:
2013/12/16
sp_UserOfflineSmall Offline

Thanks Received: 33
2
2014/01/31 - 21:08
sp_Permalink sp_Print

I've also installed Greenify, which only gave me a placebo effect, nothing else.
All kind of other battery tools also didn't give me any clues to what is going on.
Everything seems normal...

Avatar
DarthJabba

Contributor
Forum Posts: 551
Member Since:
2013/04/23
sp_UserOfflineSmall Offline

Thanks Received: 396
3
2014/01/31 - 22:29
sp_Permalink sp_Print

Mine doesn't look like a placebo effect - but perhaps it is!

Darth Jabba, the Dark Jedi from Nal Hutta

Avatar
DarthJabba

Contributor
Forum Posts: 551
Member Since:
2013/04/23
sp_UserOfflineSmall Offline

Thanks Received: 396
4
2014/02/01 - 13:51
sp_Permalink sp_Print

Breakthrough! There is clearly some telephone stuff going on somewhere, although I can't detect which app is responsible for it. Turn off the tablet's "ringer" (i.e., take it into silent mode), and the standby battery life increases dramatically. See the attached screenshot.

There are all sorts of free "silent mode" apps in the play store. I use an app called "Quick Settings" (there are many of them - I am talking about the one written by Sergej Shafarenka) to turn off the ringer. It possibly turns off all the other sounds as well, so you might have to switch it back on when you need sound.

ringer_off.pngImage Enlarger

sp_PlupAttachments Attachments

The following users say thank you to DarthJabba for this useful post:

Burs, Ohamn, maikal, Uznamer

Darth Jabba, the Dark Jedi from Nal Hutta


Avatar
Burs
Advanced Member
Forum Posts: 144
Member Since:
2013/12/16
sp_UserOfflineSmall Offline

Thanks Received: 33
5
2014/02/01 - 15:04
sp_Permalink sp_Print

Thanks. I've set that up right now, and will post the results.
But I turned all sounds off with an option from the power menu button. Should have the same effect.
I don't like having more than one app which is doing the same thing. Especialy if it's built-in rom.

Avatar
DarthJabba

Contributor
Forum Posts: 551
Member Since:
2013/04/23
sp_UserOfflineSmall Offline

Thanks Received: 396
6
2014/02/01 - 16:21
sp_Permalink sp_Print

I don't think it's just about turning off all sounds. It's about disabling the ringer. I doubt that simply turning of all sounds will work - but it is worthy trying.

Darth Jabba, the Dark Jedi from Nal Hutta

Avatar
Burs
Advanced Member
Forum Posts: 144
Member Since:
2013/12/16
sp_UserOfflineSmall Offline

Thanks Received: 33
7
2014/02/01 - 17:10
sp_Permalink sp_Print

You can also set your ringer off with Xposed GravityBox module. But it's useful to have it for many many other things too as you might already know. What I want to say is, then you set your ringer to off, there is a message "sounds are off" on the power menu too. And if you try to enable the sounds again from the power menu, the ringer is also set to on. So I would say those options are interconnected and basicaly means the same thing. Ofcourse, if I won't see any change regarding battery autonomy, I will try installing the app you suggested. Stay tuned :)

Avatar
Burs
Advanced Member
Forum Posts: 144
Member Since:
2013/12/16
sp_UserOfflineSmall Offline

Thanks Received: 33
8
2014/02/02 - 10:40
sp_Permalink sp_Print

No luck for me afterall. In 10,5 hours overnight it lost 15% with WiFi off. Now I installed QuickSettings and turned ringer off in that app. But I didn't found that Sergej guy you were mentioning? The app I installed is developed by Halfbit. Hope it's the same. Will see how that one works. You still get the same results?

The following users say thank you to Burs for this useful post:

maikal
Avatar
validatus
Advanced Member
Forum Posts: 180
Member Since:
2013/06/15
sp_UserOfflineSmall Offline

Thanks Received: 18
9
2014/02/02 - 12:51
sp_Permalink sp_Print sp_EditHistory

CAUTION

I think that this kasty 4.4.2 rom should be dangerous for the cube

 

"my tablet was charging, I am playing apks on it charge level about 95%

suddenly I eard a click 

the charge level shut down at 5%

the charge restart"

 

in stand by mode the drain is near 0%

it's impossible to go down to 4.2.2

 

I hope a final 4.4.2 the actual 4.4.2 kasty is not a test version it's an amateur version 

 

I HOPE and PRAY

 

 

Avatar
Burs
Advanced Member
Forum Posts: 144
Member Since:
2013/12/16
sp_UserOfflineSmall Offline

Thanks Received: 33
10
2014/02/02 - 13:05
sp_Permalink sp_Print

What makes you so sure it's the ROM fault? Could it be your tablet maybe?
I don't have such problems, except stand-by battery drain (which you don't have; lucky you).

Back to QuickSettings subject: ringer off is set for the last 2,5 hours. 2% drop. A little bit better. But maybe it was discharging faster overnight because it was fully charged last night, so it drains faster when full?
@JB: can you please post the exact link for the app you use? I can't find it on Play Store. Thanks.

The following users say thank you to Burs for this useful post:

validatus
Avatar
validatus
Advanced Member
Forum Posts: 180
Member Since:
2013/06/15
sp_UserOfflineSmall Offline

Thanks Received: 18
11
2014/02/02 - 14:54
sp_Permalink sp_Print sp_EditHistory

@burs

 

I think that battery control is erratic

What about a battery (batteries 2) wich are charged & charged & ...

It's physically impossible for a battery to shut down from 95% to 5%

I think that drain discharge go faster and faster when level goes down

 discharge is not linear but inverse exponential

 

 

and 4.4.2 seems to run correct on C4

 

regards

Avatar
Burs
Advanced Member
Forum Posts: 144
Member Since:
2013/12/16
sp_UserOfflineSmall Offline

Thanks Received: 33
12
2014/02/02 - 15:14
sp_Permalink sp_Print

As I said, I don't have such severe problems. Yes the battery discharges fast on my end, but it's linear, and far from erratic. In your case when it drops so much and so fast, it must be a sensor glitch or something software related. Or, some battery cells are defective, which I hope is not the case. But we all should know that this firmware is still a beta one, so I'm sure we'll have more pleasant experience when it's finaly done. Today I will play a little bit more with this ringer thingy, but I think I'll have to switch it off when not using it for more than couple of hours. I think that's an acceptable "workaround" until final version comes out.

The following users say thank you to Burs for this useful post:

validatus
Avatar
DarthJabba

Contributor
Forum Posts: 551
Member Since:
2013/04/23
sp_UserOfflineSmall Offline

Thanks Received: 396
13
2014/02/02 - 15:34
sp_Permalink sp_Print

Burs said
No luck for me afterall. In 10,5 hours overnight it lost 15% with WiFi off. Now I installed QuickSettings and turned ringer off in that app. But I didn't found that Sergej guy you were mentioning? The app I installed is developed by Halfbit. Hope it's the same. Will see how that one works. You still get the same results?

It's the same app. I just changed the overclocked kernel from T13 (with which I did the last test) to T14, and I am looking to see whether there will be a similar outcome. Also, I am doing mine in conjunction with Greenify (which I actually think is effective).

 

Darth Jabba, the Dark Jedi from Nal Hutta

Avatar
Burs
Advanced Member
Forum Posts: 144
Member Since:
2013/12/16
sp_UserOfflineSmall Offline

Thanks Received: 33
14
2014/02/02 - 15:59
sp_Permalink sp_Print

Well, now I don't see a point to what I'm doing all the time, since we don't have the same test scenario?!
You're using T13, and the overclocked one which you uploaded before was T14, right? I'm using that one!
Anyways, I turned off synching and location in addition the the ringer, and now it drains 0,5% per hour. Looks promising. If only it could stay like that, I would look no further than that. I guess I'll have to leave it on for one more night to get more precise results.

Avatar
DarthJabba

Contributor
Forum Posts: 551
Member Since:
2013/04/23
sp_UserOfflineSmall Offline

Thanks Received: 396
15
2014/02/02 - 16:08
sp_Permalink sp_Print

TBH, I don't think there's that much difference between T13 and T14 (if anything, T14 should be more battery efficient). Both are overclocked to the same 1.8ghz cpu and 768mhz gpu. Only a couple of intervals between the lowest and highest cpu speeds differ. I would be surprised if I saw any significant difference - but that is the purpose of testing. I only tried T13 because I wanted to confirm whether or not the heat dissipation was significantly better than T14.

Darth Jabba, the Dark Jedi from Nal Hutta

Forum Timezone: Europe/Paris

Most Users Ever Online: 749

Currently Online: 85keli, Cusco, Otura
229 Guest(s)

Currently Browsing this Page:
1 Guest(s)


Devices in use: Desktop (190), Phone (37), Tablet (5)

Top Posters:

Oma7144: 5784

globula_neagra: 2424

finless: 604

DarthJabba: 551

exelletor: 450

JochenKauz: 450

cracktech: 432

maikal: 394

Newest Members:

paco59

thazel99

khanmosa

KHD-91

Tecnist

wa2lgom3aa

Forum Stats:

Groups: 10

Forums: 185

Topics: 5916

Posts: 58854

 

Member Stats:

Guest Posters: 43

Members: 256514

Moderators: 5

Admins: 1

Administrators: admin

Moderators: globula_neagra, exelletor, JochenKauz, Oma7144, cracktech


CrewRKTablets moderators: JochenKauz and Astralix