(LOCKED/UNLOCKED) Solve battery drain issue on 4.0.2.A.0.42/62 on Stock kernel (V)

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aimcr7

aimcr7

Senior Member
Jun 14, 2010
2,001
889
Yogyakarta
When I bought my NEO it has .283 firmware and battery seems very good, but when updated to .42 firmware my battery seems drain faster even on deepsleep. I left it one night and when I saw it on the morning, battery drained about 15% in 8 hours. Its really annoying, even my old X10 can get better battery life on deepsleep with stock kernel.

And finaly I solved it, here is what I've done.
Just flash .283 kernel above .42 kernel, use flashtool to flash it.
you can use 4.0.1.A.0.283 ftf file, and flash it via flashtool.
Or simply flash provided ftf below. :)

You dont need an unlocked bootloader phone to flash stock kernel

just share, I've flashed baseband from .62 firmware and works great, you can try it if you want.

If you need something just ask me here. Thanks.

Cheers, Aim. ;)

Download
.62 firmware Baseband:
http://www.mediafire.com/?tfd8bdbdrcd4bpq

.62 firmware Kernel:
http://www.mediafire.com/download.php?rp4v14001fj4y4v

.283 firmware kernel:
http://www.mediafire.com/?tmc18mtizc298ny

.283 firmware baseband:
http://www.mediafire.com/?a4m08an7ns9vb96

If you want to thank me just press thanks button.
Happy flashing.
Use it with your own risk. :)
 
Last edited:
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M

MaxMedia

Senior Member
Jan 16, 2011
150
19
Ho Chi Minh City
Sometimes I also see battery drain, about 2% per hour. Then, restart the device is the best solution, or can also use "Titanium backup" to freeze the Google Map.
Google map sometimes drain battery on idle mode
(fw .283, .42. 62)
 
aimcr7

aimcr7

Senior Member
Jun 14, 2010
2,001
889
Yogyakarta
And I recommend you Antutu Battery Saver apps, its underclock your cpu automatically when you dont use it too much, very good for your battery, my battery last almost 2 days with heavy use (auto sync, browsing, and lil bit gaming)

Sent from my MT15i using XDA App
 
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saroj.padhy

Senior Member
Aug 14, 2011
67
3
Mumbai
need file to flash

Hi if you could please upload the 4.0.2.A.0.283 ftf file also the baseband from .62 that will be of great help...


Thanks
 
aimcr7

aimcr7

Senior Member
Jun 14, 2010
2,001
889
Yogyakarta
kuzenka said:
how to tick/select the kernel only on flash tool? help me pls.
Click to expand...
Click to collapse

Open flashtool, then select flash, open the .283 ftf, in the right side you can see, selectable/tickable menu > wipe user data, wipe cache, exclude system, exclude baseband, exclude kernel.
Tick exclude system and exclude baseband. And untick the rest.

Sent from my MT15i using XDA App
 
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aimcr7

aimcr7

Senior Member
Jun 14, 2010
2,001
889
Yogyakarta
Pandemic said:
i have drain to on my neo v with .42
so its not dangerous to flash the fille what you say
and i getting no fc or wlod or any errrors or losing things?
please respond
Click to expand...
Click to collapse

Not dangerous at all, ive tried it in my phone and now i use it.
No wlod and no fcs, no problem at all.
I'll upload the file soon, gimme sometime. :)

Sent from my MT15i using XDA App
 
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    aimcr7
    aimcr7
    When I bought my NEO it has .283 firmware and battery seems very good, but when updated to .42 firmware my battery seems drain faster even on deepsleep. I left it one night and when I saw it on the morning, battery drained about 15% in 8 hours. Its really annoying, even my old X10 can get better battery life on deepsleep with stock kernel.

    And finaly I solved it, here is what I've done.
    Just flash .283 kernel above .42 kernel, use flashtool to flash it.
    you can use 4.0.1.A.0.283 ftf file, and flash it via flashtool.
    Or simply flash provided ftf below. :)

    You dont need an unlocked bootloader phone to flash stock kernel

    just share, I've flashed baseband from .62 firmware and works great, you can try it if you want.

    If you need something just ask me here. Thanks.

    Cheers, Aim. ;)

    Download
    .62 firmware Baseband:
    http://www.mediafire.com/?tfd8bdbdrcd4bpq

    .62 firmware Kernel:
    http://www.mediafire.com/download.php?rp4v14001fj4y4v

    .283 firmware kernel:
    http://www.mediafire.com/?tmc18mtizc298ny

    .283 firmware baseband:
    http://www.mediafire.com/?a4m08an7ns9vb96

    If you want to thank me just press thanks button.
    Happy flashing.
    Use it with your own risk. :)
    View
    2
    Qwerty123 \m/
    Qwerty123 \m/
    Believe it or not
    my neo v lasted on 1% charge for 8 hours !!
    UC 652Mhz-244mhz
    Thats my times profile :)
    Under clock your CPU when not in use :)
    Helps:)
    View
    2
    victore88
    victore88
    buzzzy said:
    thank you for the posts... turned out that I had to install the drivers at flashtool/driver folder.. then I repeated the steps and here is what I've got:
    04/054/2012 15:54:01 - INFO - Searching Xperia....
    04/054/2012 15:54:01 - INFO - Found at USB\VID_0FCE&PID_ADDE\5&2EEFBCF&0&5
    04/054/2012 15:54:02 - INFO - Start Flashing
    04/054/2012 15:54:02 - INFO - VER="R9A021";DATE="20110128";TIME="11:49:00";
    04/054/2012 15:54:02 - INFO - Flashing loader
    04/054/2012 15:54:03 - INFO - Device connected in flash mode
    04/054/2012 15:54:04 - INFO - PROT_VER="03";DATE="20110217";TIME="15:47:00";VER="R4A066";CXC="1234-5769";TYPE="S1_LOADER";UNIQUE_DEV_ID="18C06B82........ - long one. :D
    04/054/2012 15:54:04 - INFO - Flashing kernel.sin
    04/054/2012 15:54:06 - INFO - Flashing finished.
    04/054/2012 15:54:06 - INFO - Now unplug the device and power it on
    04/054/2012 15:54:06 - INFO - Then go to application settings
    04/054/2012 15:54:06 - INFO - turn on Unknown Sources and Debugging - which were turned on... :S
    04/054/2012 15:54:24 - INFO - Device disconnected
    is it flashed? coz when i go about phone it looks the same for me.. build number same: 4.0.2.A.0.42 kernel looks same and baseband? :p
    Click to expand...
    Click to collapse


    Dial this *#*#7378423#*#* and goto service info and then software info. There you will find the kernel and baseband version.


    Sent from my MT11i using XDA App
    View
    1
    aimcr7
    aimcr7
    vinodgajaria said:
    Is it possible to do the same for neo v.?

    Sent from my MT11i using XDA App
    Click to expand...
    Click to collapse

    Surely its possible. You can try it and report it here mate. :)
    View
    1
    aimcr7
    aimcr7
    try .283 with baseband -56 ;)
    View

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