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[Need advice] What firmware should I flash to when downgrading?

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(Last edited by Jacksson; 29th January 2014 at 08:26 PM.) Reason: Adding information
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Question [Need advice] What firmware should I flash to when downgrading?


I have currently been researching on how to reflash my Galaxy S2 back to Gingerbread to fix a battery problem due to overload.
I have everything backed up, and Odin installed on my PC.

Could anyone more experienced than me help me choose the right firmware to my phone, just to be on the safe side.

My settings:

Android: 4.1.2
Baseband: I9100XXMS4
Version: 3.0.31-1418025 dpi@DELL226 #3 SMP PREEMPT Wed Sep 25 19:29:28 KST 2013
Compile nr: JZO54K.I9100XWMS1

Feel free to tell me if this post is in the wrong place, as I am a new user.
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Go to Samfirmware, choose a firmware for your country/carrier. If Samfirmware doesn't have what you need, try & If they don't have what you need, you're probably out of luck. GB stock firmwares can be a bit hard to find these days.
If it's important enough to cause you grief if it's lost, back it up. No excuses
Trolling for thanks is lame
Does Samsung's auto-brightness implementation crap drive you to self-harm ? A solution !
Failure to search is the leading cause of male impotence on XDA
If you don't know how to recover if things go wrong, what are you doing flashing custom roms ?
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