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How I downgrade from ICS to Gingerbread 2.3.5?

OP antineo69

24th March 2012, 12:00 PM   |  #1  
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Good moring everyone.

I would like to downgrade to Gingerbread 2.3.5 after updating from ICS through Kies couple days ago,As Ice Cream Sandwich is a complete failure on S2 there nothing special,Face-unlock: Too long time before the camera opens., it quicker just unlock with your finger,interface is the same, Battery seem to suck more juice only last day even though i got Genuine Samsung Extended Battery Kit for Galaxy S2 - 2000mAh where GB last 3 day plus dodgey lockscreen and etc the only best bit is in Setting. ICS and Samsung deffo need more work to it.

So would like to no how to go back to GB 2.3.5?


Im on 3UK here detail of GB on my phone before ics

PDA XWKI8
Phone NEKI8
CSC H3GI2

PS i done google search and most links are dead on here aswell.

Plz Help
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24th March 2012, 12:16 PM   |  #2  
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Download odin flash tool.
Go to sammobile.
Make a registration and login.
Download firmware you prefer.
Flash with odin.
Make a deep reset
Done!

Inviato dal mio GT-I9100
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24th March 2012, 12:21 PM   |  #3  
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before downgrade, did you try a wipe? this fix 2 of my friend battery problem

Sent from my GT-I9100 using XDA
24th March 2012, 12:23 PM   |  #4  
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If you really want back to Three's Gingerbread ROM


http://www.filefactory.com/file/c423...0NEKI2.tar.zip

KI8 ^ Stock firmware I downloaded it from Intras thread a while back.

Unzip > flash with odin in PDA > clear cache from recovery after flash.
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24th March 2012, 12:44 PM   |  #5  
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which ICS firmware you're using ?
Do you want to go back to a stock GB firmware or a custom ROM?

Sent from my GT-I9100 using Tapatalk
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24th March 2012, 03:19 PM   |  #6  
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Quote:
Originally Posted by mekhonte

which ICS firmware you're using ?
Do you want to go back to a stock GB firmware or a custom ROM?

Sent from my GT-I9100 using Tapatalk

Im using the official Stock ICS that came though Kies

ICS Detail
PDA I9100XXLPQ
phone I9100NELP2
CSC I9100H3GLP2

so i like to retrun GB Official Firmware
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24th March 2012, 11:19 PM   |  #7  
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It can be done.I had a custom XXLPH 4.0.3 ICS rom that I flashed via odin onto my galaxy S2.

I'm going through the same process now, going back to an original orange stock rom.

I downloaded an integrated package via check fus downloader and tried (as read and advised to load into Odin PDA box, check re- partition, have phone in USB debug mode, download mode on phone and flash.

However be careful as I'm finding out the (compressed / encrypted) ENC2 file that I downloaded is invalid so its causing me problems to install.

However to prove a point downgrading is easy, I have a copy of gingerbread 2.3.5 that is already split into various files to fill in the PHONE, PDA, PIT, CSC boxes in Odin.

This flashed over the ICS no problem.

So hopefully when I manage to download an uncorrupted Orange stock rom I'm sure it will work too!
25th March 2012, 12:19 PM   |  #8  
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http://forum.xda-developers.com/show....php?t=1554355

Here's the answer!!

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25th March 2012, 01:18 PM   |  #9  
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Is deep sleep? You can check with CPU-Spy. If not, remove the battery a few minutes and then returned.
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14th May 2012, 07:55 PM   |  #10  
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I put 2.3.5 Orange rom back on temporarily, noticed the battery drain rather quick, don't know why anyone bothers downgrading or putting original stock rom back on their phones.

Changed network anyway to different sim package and I put ICS 4.0.3 UK carphone warehouse on the phone, no bloatware and battery doesn't drain now.

I'm going to stick with 4.0.3

Got roms from here:

http://www.sammobile.com/firmware/?p...m=GT-I9100&r=1

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