General [AUBB] OFFICIAL STOCK FW-update(Odin) thread (04 Mar 21) GALAXY S21 Ultra SM-G998B

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master_class

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Sep 13, 2014
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ionutdicu

Senior Member
Jan 10, 2011
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I have a question, I own a SM-G998B with ARO CSC , is it possible to just flash other firmware from another CSC (like PHE) using Odin and start receiving updates from PHE instead of ARO?
you should check if desired CSC is included in a multi CSC (eg OXM); apparently, ARO is included in OXM, so you can flash the update received for other CSCs in OXM (ROM, DBT, XEU etc)
 

ryupunk

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Feb 7, 2015
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Cordoba
Samsung Galaxy S21 Ultra
you should check if desired CSC is included in a multi CSC (eg OXM); apparently, ARO is included in OXM, so you can flash the update received for other CSCs in OXM (ROM, DBT, XEU etc)
So basically, I can switch from CSC while maintaining my region (I checked my firmware and I'm on OWO right now). Is there any way to change the region as well? I would like to be on OXM since it gets the updates sooner. Sorry for my noob questions, this is my first samsung device. Thanks again!
 

carlitobahsoun

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Sep 26, 2012
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beirut lebanon
why on XID update april patch its less than 1gb , other its 1gb and more , wired
 

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henklbr

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Feb 20, 2009
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So basically, I can switch from CSC while maintaining my region (I checked my firmware and I'm on OWO right now). Is there any way to change the region as well? I would like to be on OXM since it gets the updates sooner. Sorry for my noob questions, this is my first samsung device. Thanks again!

Don't install Multi-CSC OXM firmware on a Multi-CSC OWO device ! ! !
 
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