Forum switched to read-only as of 2020/06/01

Latest product reviews
ARCHOS 50 Diamond
TV Connect


— Forum Scope —

— Match —

— Forum Options —

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

Lost password?
The forums are currently locked and only available for read only access

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
This topic is locked
Advanced Member
Forum Posts: 144
Member Since:
sp_UserOfflineSmall Offline

Thanks Received: 33
2014/02/08 - 20:01
sp_Permalink sp_Print

OK... here's the catch. It seems that my battery drain issues are there due to my apps. Specificaly, Next Launcher 3D, Asteroids Pack live wallpaper and HD Widgets. Everything is more or less ok (.35% drain per hour) without those apps, but with all of them started, battery drain is about 1-1.5% per hour. The percentage is incremental with every of these apps started, and I don't have any less or any more battery drain with the other steps applied from my previous post. Why aren't these apps put in "eco-mode" while tablet is sleeping, I don't know? But they shouldn't take any resources, should they? I've enabled "battery optimize" features in these apps and don't see what else could I do, except removing them from my homescreen and uninstall them. Maybe I could find some alternatives to these apps, but I really like these ones. But all I wanted to say here that my tablet is not really in deep sleep, although every app say it is. That's why it drains battery. My search is over until final release comes out. Over and out :)

New Member
Forum Posts: 2
Member Since:
sp_UserOfflineSmall Offline
2014/04/03 - 13:50
sp_Permalink sp_Print

Hi Guys, I'm having the same problem with battery drain since the upgrade to t14. It's using about 1% ever 30 seconds. Have tried turning stuff off etc but still no difference. Used to go all day without charging. Standby is really good but I start to use the tablet the battery drains in less than 1 hour. 

Active Member
Forum Posts: 34
Member Since:
sp_UserOfflineSmall Offline
2014/04/24 - 00:55
sp_Permalink sp_Print

same to me

New Member
Forum Posts: 4
Member Since:
sp_UserOfflineSmall Offline
2014/04/24 - 21:30
sp_Permalink sp_Print

nelySLB said
same to me


New Member
Forum Posts: 2
Member Since:
sp_UserOfflineSmall Offline
2014/04/25 - 03:36
sp_Permalink sp_Print

I have also tried restoring back to previous but still did not fix the problem. I have been running on power all the time time because the tablet will only run for about 5 min and then shuts down. I have ordered a new battery to try as I'm thinking the battery chip might have died.

New Member
Forum Posts: 6
Member Since:
sp_UserOfflineSmall Offline

Thanks Received: 1
2014/04/28 - 17:57
sp_Permalink sp_Print

David598 said
I have also tried restoring back to previous but still did not fix the problem. I have been running on power all the time time because the tablet will only run for about 5 min and then shuts down. I have ordered a new battery to try as I'm thinking the battery chip might have died.

I have 3 tablets for testing. On one the battery seems ok, but on the other 2, battery lasts barely 30 min. Battery was much better in JB, but I can't downgrade yet. 

I've tried all you have posted in the thread, full format, and have no apps, but battery drain is awful.

Active Member
Forum Posts: 30
Member Since:
sp_UserOfflineSmall Offline

Thanks Received: 10
2014/04/29 - 10:40
sp_Permalink sp_Print

Sorry guys, the battery in these tablets dies rather sooner than later... dozens of cases reported in different forums... you can try to downgrade (easiest method is to flash supersport's ROMS from Freaktab forums since it includes the JB boot loader...) but I'm afraid nothing will change... only solution is a replacement battery. Check posts about the topic here in the forum.



Forum Posts: 551
Member Since:
sp_UserOfflineSmall Offline

Thanks Received: 396
2014/05/03 - 12:57
sp_Permalink sp_Print

I have attached two MODs for this ROM to help deal with the battery drain issue.

The first will move all the phone stuff to a backup directory (

The second ( will reverse the actions of the first (don't try using the second if you never used the first!).


These mods work for me. Your mileage may vary. Either of these mods might brick your tablet, or bring an asteroid crashing down on your planet, or might lead you to the dark side, or whatever else. If in doubt, then do NOT touch or use either of them. You have been warned!

To install either of these MODs you must have CWM or TWRP Recovery installed, and you must already have a Kasty KitKat 4.4.2 ROM for Cube U30GT2 from, or the equivalent DarthJabba mod.

Then follow these steps;

0. Read the readme.txt file inside the zip file, and ensure that you understand fully the implications of what the mod will do. There are side effects to using the phone mod. If, after reading the readme file you still wish to proceed, then do these:

1.  Copy the relevant zip file to the tablet's internal SD card
2.  Reboot the tablet to CWM or TWRP Recovery
3.  Select "Install zip from sdcard"
4.  Then select "Choose zip from sdcard"
5.  Scroll on the SD card to this zip file, and select it
6.  Confirm that you do want to install it
7.  The tablet will reboot back to the CWM/TWRP Recovery
8.  Select "Reboot system now"
9.  Wait for 2 minutes after rebooting, and, hopefully, all will be well, and you will get some better battery performance.

Darth Jabba, the Dark Jedi from Nal Hutta

New Member
Forum Posts: 7
Member Since:
sp_UserOfflineSmall Offline
2014/05/10 - 16:21
sp_Permalink sp_Print

Hey, Guys!

First of all, thanks for all the invaluable help.

My battery has a negligible stand-by drain, but only lasts a bit more than an hour of a very light use. I'm gonna pronounce the battery dead, and indeed already ordered a replacement from AliExpress.

While I'm in the tablet's guts, I'd like to do as much good as possible. I vaguely remember reading here somewhere that it is possible to improve the WiFi reception quality by resoldering the antenna? But was unable, for the life of me, to find that thread again. Can somebody please point me in the right direction?

I am a fair hand at soldering, but after hearing all the dire warnings about "burning out the motherboard", I thought I'd go safe, and bought a "soldering glue": it's a carbon-based superglue-like substance that transmits current very well, and does not require soldering. I tried it while reassembling my bass guitar, and it seems to work very well. Just FYI...

So, how 'bout that antenna?..

Thanks in advance, appreciate it!


This topic is locked
Forum Timezone: Europe/Paris

Most Users Ever Online: 803

Currently Online:
64 Guest(s)

Currently Browsing this Page:
1 Guest(s)

Devices in use: Desktop (52), Phone (11), Tablet (1)

Top Posters:

finless: 604

DarthJabba: 551

maikal: 394

mussonero1: 350

JEssicannn: 279

alex: 252

damo: 243

DanielVd: 237

Newest Members:







Forum Stats:

Groups: 10

Forums: 185

Topics: 6129

Posts: 60941


Member Stats:

Guest Posters: 43

Members: 266802

Moderators: 5

Admins: 1

Administrators: admin

Moderators: globula_neagra, exelletor, JochenKauz, Oma7144, cracktech

CrewRKTablets moderators: JochenKauz and Astralix