Does flashing a rom through ODIN wipe e-SIM profiles? - Samsung Galaxy Note 20 Ultra Questions & Answers

I want to change my CSC from ZTO to BTU and I use e-SIM. I wonder if flashing a rom through ODIN will clean my current e-SIM profile.
It's a PITA to reactivate e-SIM on my carrier and I want to avoid the need to go there just to do this.
Does anyone know if ODIN will wipe my current e-SIM when I install a new ROM?
Thanks in advance

dxzdxz1 said:
I want to change my CSC from ZTO to BTU and I use e-SIM. I wonder if flashing a rom through ODIN will clean my current e-SIM profile.
It's a PITA to reactivate e-SIM on my carrier and I want to avoid the need to go there just to do this.
Does anyone know if ODIN will wipe my current e-SIM when I install a new ROM?
Thanks in advance
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No feedback and now im like u !! did u try it ?

I'm not 100% certain, but I believe a full wipe, or changing CSC will wipe eSIM settings.

Related

Changing CSC Help

I've looked everywhere and can't find a proper walkthrough/tutorial for my questions
I have a g930w8 S7 canada which is a multi csc phone, i want to change the csc to another carrier that i'm now subscribed to and further they have newer update then old carrier.
So i'm wondering what my best choice is
1. change csc with *#272*IMEI# code, without sim in, let it reset, power off and then clear cache through recovery menu, then put sim in and it's essentially that new carriers phone? And latest firmware/ later otas would be to said new carrier?
2. flash latest new carrier firmware through odin and voila new carrier phone?
Which option is better? 1 is easier but does it change active csc and then when new update downloads does it change firmware csc?
Thanks for your help
Kevotwo said:
I've looked everywhere and can't find a proper walkthrough/tutorial for my questions
I have a g930w8 S7 canada which is a multi csc phone, i want to change the csc to another carrier that i'm now subscribed to and further they have newer update then old carrier.
So i'm wondering what my best choice is
1. change csc with *#272*IMEI# code, without sim in, let it reset, power off and then clear cache through recovery menu, then put sim in and it's essentially that new carriers phone? And latest firmware/ later otas would be to said new carrier?
2. flash latest new carrier firmware through odin and voila new carrier phone?
Which option is better? 1 is easier but does it change active csc and then when new update downloads does it change firmware csc?
Thanks for your help
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Click to collapse
Hi mate
assuming you are not root
option 1 is good but is not working anymore in most phones , once you change your CSC it stay active until you flash a different firmware with different CSC
option 2 maybe your only option , all canadian firmwares i see they seem to be single CSC , which one are you looking for? if so just flash it ( use CSC file , not home_csc) and you are done......backup csc change will factory reset your phone

Can G955N flash Rom of G955F/FD ?

Hi,
Can I flash rom of G955F/FD to G955N, and why if not. cause I saw some Rom can flash G955X.
Btw, is there any way to edit MEID Cert without using Z3X Box?
Thanks!
Yes you can flash G955F ROMs. Just make sure you have the proper CSC file for your region, to flash after installing the rom,. Your Regional Sim card won't work without it. There are many tools in the S8 Developer section. Some of the Roms already have built in multi CSC files, so read the OP of each ROM you may be interested in.
DONT clean install the OREO release (like I did), as it locks the "OEM unlock option.
Amd4life said:
Yes you can flash G955F ROMs. Just make sure you have the proper CSC file for your region, to flash after installing the rom,. Your Regional Sim card won't work without it. There are many tools in the S8 Developer section. Some of the Roms already have built in multi CSC files, so read the OP of each ROM you may be interested in.
DONT clean install the OREO release (like I did), as it locks the "OEM unlock option.
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Thanks @Amd4life for the answer.
So after flash Rom G955FD, I can use dual sim function?
Do you know anyway to change MEID Cert without Z3X Box?
Yes on the dual SIM, with the correct CSC. I can't answer the second question, unfortunately
is there any way to do this and upgrade to oreo without breaking knox?
im on 955n with stock aql3 last update. and if there is a way to update without having to wait for oficial release for korean models, that would be amazing.
Amd4life said:
Yes on the dual SIM, with the correct CSC. I can't answer the second question, unfortunately
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please how can i do the flashing? i also want to flash my g955n to g955f.
i mean where can i get the right firmware and the right tools?
thank u

VoLTE in Vodafone UK network not working

Dear Folks,
I have one European S7 SM-G930F. I am in UK and VoLTE is not working with Vodafone. I think it has to do something with the fact that I flashed the Indian ROM in this phone, as VoLTE was not working when I was in India. Now that I am back in UK, I want to enable VoLTE.
I have few questions, need help guys :
1) Can I do this without erasing data?
2) If I only flash the HOME_CSC will it work? Link:https://www.sammobile.com/firmwares/galaxy-s7/SM-G930F/VOD/download/G930FXXU2ERG2/229367/
Currently:
AP: G930FXXU2EREM
CP: G930FXXU2ERD6
CSC: G930FODD2ERE2
Cheeeers

			
				
If you flash home_csc it won't wipe and should give you the functionality.
Otherwise there is a flashable CSC tool that you use with TWRP, but I dont think it has Oreo support yet.
Back to Square one
Thanks, I ended up flashing TWRP, which resulted in boot-loop as I did not wiped the data partition and somehow TWRP messed up with my current installation. With boot loop in action and no option I flashed the Vodafone UK ROM, which was a German ROM ( I Don't know why SAM MOBILE would do this) like a spy in British Army. Anyways so all that did not enable VoLTE still and Samsung Pay stopped working. After googling turned out Vodafone UK is very specific to enable VoLTE only on their supplied handsets only. After wasting lot of time, I finally decided to go back to original ROM, now it will take at least a week to set it up with all my apps. What an epic waste of time mate ! Thanks for reading if yer did
Beanvee7 said:
If you flash home_csc it won't wipe and should give you the functionality.
Otherwise there is a flashable CSC tool that you use with TWRP, but I dont think it has Oreo support yet.
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Click to collapse
Yikes, I mentioned the TWRP method second, because it was an option, but it's not something you rush into. Always backup first, always read the full instructions.
TWRP trips Knox, which Samsung Pay uses, so you won't be able to use it again.

VoLTE on SM-G930F

Hi there !
Here is the thing : my wife got a S7 from Amazon Italy.
CSC used is : G930FITV3ERKF
Phone state : Full stock Oreo, no root, no custom recovery, nothing changed.
Is there a way to enable VoLTE/VoWIFI on this ? Ideally without rooting or needing to wipe.
No one ?
repulse said:
No one ?
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The issue is not the CSC *version*, but rather the 3-letter CSC code. You must install a ROM (using Odin) with the CSC code that is used by your carrier (who must support VoLTE, of course).
If your carrier doesn't support VoLTE, there is nothing you can do. If you aren't using a carrier-compatible ROM, VoLTE won't work even if the carrier supports VoLTE.
Droiderat said:
The issue is not the CSC *version*, but rather the 3-letter CSC code. You must install a ROM (using Odin) with the CSC code that is used by your carrier (who must support VoLTE, of course).
If your carrier doesn't support VoLTE, there is nothing you can do. If you aren't using a carrier-compatible ROM, VoLTE won't work even if the carrier supports VoLTE.
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Flashing with Odin will wipe all data, right ?
repulse said:
Flashing with Odin will wipe all data, right ?
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If you flash with "CSC", it will wipe all data; if you flash with "Home_CSC", it won't.
If you are changing the CSC of your phone (a process you should research before flashing anything), you will likely need to wipe all data.
Droiderat said:
If you flash with "CSC", it will wipe all data; if you flash with "Home_CSC", it won't.
If you are changing the CSC of your phone (a process you should research before flashing anything), you will likely need to wipe all data.
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Hum, OK. Still better no need to wipe, but not a big deal though. Thanks dude !
If you want to root, you may be able to avoid wiping data by using the Alexndr ROM (which is, for the most part, a stripped version of a stock ROM). See https://forum.xda-developers.com/galaxy-s7/development/rom-dqd2-devbase-v4-1-multi-csc-safe-t3592914 The installation process allows you to specify the CSC, but I can't give you the nuances of doing that as I have never done it.
Note that if you root, it is my understanding that you won't be able to use Samsung Pay (ever; once the switch is tripped, you can't go back). You can, of course, reinstall purely stock ROMs (w/o root), but Samsung Pay will never work. This isn't important to me; it may be to you.
Samsung Pay isn't important to me, same as knox. Alexndr ROM seems good, will give it a look.

Note 20 ultra d/S firmware

I don't find note 20 ultra Dual sim firmware. Does the N986b/ds use same firmware as the N986b without loosing dual sim function? Reason I'm thinking on flashing is cause I have a xfa version and network reception is really bad and thinking on flashing btu. Do u guys think that a new firmware might help? (all other devices I get 3 bar at home and with note 20 ultra sometimes I have no network)
Check here for your required FW.
N986B is the Global Exynos model (it is Dual-SIM = DS); in case if any regions are single-SIM for this particular model (I'm not aware as such), the N986B FW will still be the same as for DS.
elmor0 said:
Check here for your required FW.
N986B is the Global Exynos model (it is Dual-SIM = DS); in case if any regions are single-SIM for this particular model (I'm not aware as such), the N986B FW will still be the same as for DS.
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Thank you. Do u think if I flash a different country firmware, might help with poor signal?
specia1one said:
Thank you. Do u think if I flash a different country firmware, might help with poor signal?
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Click to collapse
It's possible I think.
But..... only try other Exynos region FW (cannot flash FW for SnapDragon variants on N986B without running into problems).
Check on Note 20 threads regarding properly changing CSC.
Also, there are some .xml modification solutions that enable you to activate extra 4g/5g bands - worth a search & try.
(Sorry I don't have the links to hand, but recall seeing these discussions before on N20 XDA forums).
I'm with Three UK does this help
Cheers eddie
If I download BTU firmware and just flash it with Odin won't it just install firmware and radio software? Sorry I been away from Samsung for some years now. In past was just easy to flash a d all would work.
specia1one said:
If I download BTU firmware and just flash it with Odin won't it just install firmware and radio software? Sorry I been away from Samsung for some years now. In past was just easy to flash a d all would work.
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Click to collapse
When you un-compress the firmware download you will get five files. Each go into a specific part of ODIN - can't mistake it - but if you want to keep data intact you will need to flash Home_CSC. This will NOT change your regional CSC however.
You also need the "hacked" version of ODIN found on this forum easily.
ultramag69 said:
When you un-compress the firmware download you will get five files. Each go into a specific part of ODIN - can't mistake it - but if you want to keep data intact you will need to flash Home_CSC. This will NOT change your regional CSC however.
You also need the "hacked" version of ODIN found on this forum easily.
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Click to collapse
If I flash that 5 files will I still be able to get Ota?
When I flash should I use CSC or HOME CSC. So that I keep getting updates? I think that if I flash UK international firmware, will sort alot of my issues. It feels in my country software is never very stable.
Flashing CSC will delete your Data but flashing HOME_CSC will not delete your Data.
elmor0 said:
Flashing CSC will delete your Data but flashing HOME_CSC will not delete your Data.
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Click to collapse
Will both ways I still get Ota even if I install btu firmware? (is there any benefit on me flashing the csc and not Home_CSC?)
Once bootloader unlocked I don't think you can get OTA - You'll need to flash FW updates manually.
Flash CSC for clean install.
Flash HOME_CSC if just updating FW & need to preserve user data.
elmor0 said:
Once bootloader unlocked I don't think you can get OTA - You'll need to flash FW updates manually.
Flash CSC for clean install.
Flash HOME_CSC if just updating FW & need to preserve user data.
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So if I flash a different rom I won't be able to do Ota anymore?
No
specia1one said:
So if I flash a different rom I won't be able to do Ota anymore?
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Click to collapse
Not unless you re-lock BL.
Hopefully they'll come with a solution. I would like to flash a different rom (different country) and still get Ota updates as normal. I don't wanna be flashing every month
These are stock roms, why do you need to unlock your bootloader?
ultramag69 said:
These are stock roms, why do you need to unlock your bootloader?
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I only want to flash a btu firmware. I don't need custom roms. Just want an advise and guidance. Cause I don't know now how it works. I was told here that I won't get otas if I flash a btu rom on my note 20 ultra that currently has xfa
specia1one said:
I only want to flash a btu firmware. I don't need custom roms. Just want an advise and guidance. Cause I don't know now how it works. I was told here that I won't get otas if I flash a btu rom on my note 20 ultra that currently has xfa
Click to expand...
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Yes I understand but why is someone talking about unlocking your bootloader?
You just want to change your CSC...
ultramag69 said:
Yes I understand but why is someone talking about unlocking your bootloader?
You just want to change your CSC...
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I end up selling my note 20 ultra. Signal was bad. I'm using my p30 pro for now until I get something else. But I doubt will be a Samsung.
Thanks for help guys

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