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Is it possible to downgrade from jellybean back to ics

OP Alex Slane

7th February 2013, 05:52 PM   |  #1  
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Hi guys , need some information, I was just wondering is it possible that I could downgrade back to ics after putting jellybean on my phone?
Your help is appreciated.
All the best
Chris.
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7th February 2013, 05:56 PM   |  #2  
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Yes it is.
How did you upgrade?
If you upgraded via FlashTool you can just as easily downgrade using the same method, just by using an ICS .TFT instead of the JB one.

Any reason why you want to downgrade?
Make sure you do a complete wipe to make the ROM to be good and dandy, and the battery will get better after a few days.
Last edited by dmbardal; 7th February 2013 at 06:09 PM.
7th February 2013, 05:58 PM   |  #3  
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Re: Is it possible to downgrade from jellybean back to ics
Sure you can, you just need to flash ics ROM with flashtool (you dont need to have unlocked bootloader)

But I dont see the reason to downgrade

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9th February 2013, 01:21 AM   |  #4  
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Re: Is it possible to downgrade from jellybean back to ics
Thanks for the replies, I want to go back to ICS due to the major battery drain that I am getting, I have read a few threads now on here and also esato and jellybean battery seems to be very hit and miss.
I live how fast the phone has become but can't live with a poor battery. Got any ideas before I go back to ICS?

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9th February 2013, 06:52 AM   |  #5  
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Re: Is it possible to downgrade from jellybean back to ics
Yes wait a few days, the first few days I'd flashing a Rom are always battery heavy

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9th February 2013, 11:01 AM   |  #6  
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Quote:
Originally Posted by gregbradley

Yes wait a few days, the first few days I'd flashing a Rom are always battery heavy

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ok well , i have just read that formatting to extenal and internal memory helps , so i have just done that .
as you say its a big upgrade firmware wise so going to give it a couple of days and then look at what the diffrence is again .
10th February 2013, 02:39 PM   |  #7  
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Re: Is it possible to downgrade from jellybean back to ics
Ok so reporting back on my T's jellybean upgrade, seems that it's starting to level out a lot now, as I said in my last post did the memory thing and formatted both And the phone has responded very very well.
Seems to get a whole days usage now and maybe a bit more. I always charge anyways over night so nothing to worry about. How's yours?

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10th February 2013, 05:35 PM   |  #8  
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i had the same dilema as you to downgrade to 4.0.4...
I noticed today that the phone drains 4 to 8 % battery in standby mode over the night.. i havent noticed something like this in 4.0.4 .
I think the battery management was better.

Anyway i will follow your suggestion to wait a few days to level the situation .

I updated with mac bridge . What is the best method if i decide to downgrade ?
I need a clean install method .Format everything and clean install the rom i decide to install.

Also does the repair option in pc companion or bridge does a clean install;
Thank you
10th February 2013, 05:37 PM   |  #9  
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Quote:
Originally Posted by profchaos1981

i had the same dilema as you to downgrade to 4.0.4...
I noticed today that the phone drains 4 to 8 % battery in standby mode over the night.. i havent noticed something like this in 4.0.4 .
I think the battery management was better.

Anyway i will follow your suggestion to wait a few days to level the situation .

I updated with mac bridge . What is the best method if i decide to downgrade ?
I need a clean install method .Format everything and clean install the rom i decide to install.

Flash a stock ICS ftf in flashtool
Quote:

Also does the repair option in pc companion or bridge does a clean install;
Thank you

Yes.
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10th February 2013, 05:44 PM   |  #10  
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thank you so much for your quick reply!

so if i got it right the repair option performs a clean install to the existing rom ..In my case it will reinstall JB 4.1.2

If i choose the flash tool i will choose the rom i want .. So do i get it right?
And if so where can i download the original 4.0.4 rom ? thank you again for your help!

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