GalaxyS2, unrooting and flashing stock

Associate
Joined
26 Aug 2003
Posts
204
I have a rooted GS2 running JellyBAM 4.2.2
I'm selling it due to an upgrade, so I want to unroot and flash the latest stock firmware for the GS2.
So do I do it in that order? Also what is the latest firmware? and which one should I flash? It was on O2 but Im currently waiting for an unlock code.
Thanks for any help
 

uv

uv

Soldato
Joined
16 May 2006
Posts
8,435
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Manchester
No need to unroot it first, just flash the latest official rom (grab it from sammobile) and flash with Odin. It'll then be stock and unrooted.

from sammobile:

Latest firmware info

GT-I9100 Galaxy S II
PDA: I9100XWLPT
CSC: I9100XEULPA
Added: 2012-6-30
 
Soldato
Joined
11 Oct 2009
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16,548
Location
Greater London
^ This.

Once you network unlock it, flash the stock Samsung ROM instead of the O2 version, that should help when selling the phone as it will get updates directly from Samsung instead of needing to wait for O2.
 
Soldato
Joined
31 Jan 2009
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Location
Newcastle Upon Tyne
No need to unroot it first, just flash the latest official rom (grab it from sammobile) and flash with Odin. It'll then be stock and unrooted.

from sammobile:

Latest firmware info

GT-I9100 Galaxy S II
PDA: I9100XWLPT
CSC: I9100XEULPA
Added: 2012-6-30

Actually, Jelly Bean 4.1.2 is now available for SGS2.

You can get it from:


Select the first Download link. Don't forget to download the latest Odin software.

Firmware details:

Base Firmware: I9100XWLSN (4.1.2)
Region: Europe
Country Nordic Countries
Carrier: Unbranded
Build Date: 19 March 2013
Modem: XXMS2
CSC: OXXLS8
Change List: 1069234

And to echo above, once you have flashed the new stock firmware (be sure to do a factory wipe afterwards in recovery), the phone will be back to unroot.
 
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