Help! How to change the CSC on a SM-R850? - Samsung Galaxy Watch

Hi.
I was brought a Samsung watch by a relative overseas (SM-R850). However, I'd like to change the CSC to my native country (UK).
I understand this entails flashing the firmware, which I have no problem with doing, however is there an online guide on how to do this. Files required / where to get them (if not the easy firmware site) etc? I've used odin once before - but that seems a long time ago!
Many thanks

Related

[Q] Create official odin image? Or: firmware for drei.at?

Hi.
I got a note 2 and would like to have an odin image with the official state as I bought it before I start tinkering with it (root, flashing rom, etc) so I can restore it if I need to claim warranty service.
The issue is: The firmware is of the austrian mobile operator 3 (www.drei.at) and I did not find an official firmware for it!
Can someone point me to it if it exists (did not find it on http://www.sammobile.com/firmware)?
Else: Is it possible to create an "official" system dump of it that works with odin? So if I restore from that created firmware it restores to the state I bought it without anything changed (no custom firmware counter increased, etc).?
I know there are some guides on how to create odin dumps, but they are rather complicated and I am unclear if I restore from one of those if it counts it as official (does it need to be signed for that and anyone not from samsung even do that?) and does not increase it.
Can you help me?
http://forum.xda-developers.com/showthread.php?t=1951091
You can root your phone and do whatever you want, and whenever you want. You can simply return to official warranty version by following steps in first reply of the link i attached.
Thanks
I don't think you get want I mean:
I know how rooting and flashing and odin works, i've done it lots of times. And i've also returned phones to stock.
Until now however I always had unlocked devices with completely official samsung firmwares, but now I have an oparator specific firmware: that of 3 austria.
I did not find an image for this firmware, so I cannot flash back the correct stock image because I did not find that specific image provided anywhere.
So my question:
- Where do I get the firmware JRO03C.N7100XXALIJ for 3 austria? Is it even available?
- If not: can I create it myself?
On http://www.sammobile.com/firmware the only option sensible that gives me results is the latest 10...
Is there a way to view all firmwares for a device (i.e.: n7100) to make sure mine is not among them?
this site is much better. you won't find that firmware exactly but you find other updates for your specific region!
http://samsung-updates.com/device/?id=GT-N7100

[Q] Radio not working in custom ROM I9082

I bought I9082 from China Unicom (which I believe is firmware locked).
I tried to upgrade the firmware manually through ODIN.
But in ODIN it stops at setup connection
<ID:0/006> Odin v.3 engine (ID:6)..
<ID:0/006> File analysis..
<ID:0/006> SetupConnection
<ID:0/006> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)
Then I rooted with CWM and loaded Custom ROM.
Later I upgraded a custom rom - XXAMD6 on baseband ZNMAMB3.
But the problem now is Radio is switched off. So the mobile is not active.
When I try to make a call it says Flight mode is activated. But really flight mode is switched off.
I am able to receive calls and messages
Do you have any solution for this.
Does this mean the firmware is locked?
Any possibility that I can revert back to original stock ROM I9082ZNAMB3
I have this stock ROM downloaded but could not load this through ODIN (seems there is some lock since it stops at setup connection in ODIN).
Any possibility that this stock ROM can loaded through CWM?
My phone is kind of half-bricked since I couldn't make any call also not able to upgrade.
Please give me solution.
mr_coimbatore said:
I bought I9082 from China Unicom (which I believe is firmware locked).
I tried to upgrade the firmware manually through ODIN.
But in ODIN it stops at setup connection
<ID:0/006> Odin v.3 engine (ID:6)..
<ID:0/006> File analysis..
<ID:0/006> SetupConnection
<ID:0/006> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)
Then I rooted with CWM and loaded Custom ROM.
Later I upgraded a custom rom - XXAMD6 on baseband ZNMAMB3.
But the problem now is Radio is switched off. So the mobile is not active.
When I try to make a call it says Flight mode is activated. But really flight mode is switched off.
I am able to receive calls and messages
Do you have any solution for this.
Does this mean the firmware is locked?
Any possibility that I can revert back to original stock ROM I9082ZNAMB3
I have this stock ROM downloaded but could not load this through ODIN (seems there is some lock since it stops at setup connection in ODIN).
Any possibility that this stock ROM can loaded through CWM?
My phone is kind of half-bricked since I couldn't make any call also not able to upgrade.
Please give me solution.
Click to expand...
Click to collapse
you may experience "no service " after rom installation here is what u do to get it back...
its a modem compatibility issue in between different firmwares
download the file from http://www.mediafire.com/?avjo48kvgz517z5 or http://d-h.st/7O8 NEW MODEM LINK
put ur mobile in download mode VOLUME DOWN + MENU + POWER then VOLUME UP to continue
connect to pc
(ur kies should not be runing... proper drivers should be installed)
start odin3 v3.04 . u should see the blue comxx as phone is connected
autoreboot and reset time should be selected.
click in PDA . select the modem.amc8.tar
click start...wait....u get pass confirmation..phone may boot into recovery just reboot.
JUST leave the feedback on this... it worked for me....so it may work for all of u.
Hi, I could not download any file through Odin. I tried pushing the modem file already. Do you think there is any firmware lock?
During setup connection it stays for long time and then it says failed.
Any modem MOD file to push through ClockworkMod I can try.
mr_coimbatore said:
Hi, I could not download any file through Odin. I tried pushing the modem file already. Do you think there is any firmware lock?
During setup connection it stays for long time and then it says failed.
Any modem MOD file to push through ClockworkMod I can try.
Click to expand...
Click to collapse
follow this guide http://forum.xda-developers.com/showthread.php?t=2280248 . make ur own custom rom from ur stock firmware & flash it u will have ur radios back.
or contact @tonylin880806 he is trying to make one rom for ur device.
Hi, Do you know why I could not upgrade firmware or push anything through ODIN?
mr_coimbatore said:
Hi, Do you know why I could not upgrade firmware or push anything through ODIN?
Click to expand...
Click to collapse
it may be carrier locked!!!
unlock carrier lock
k2wl said:
it may be carrier locked!!!
Click to expand...
Click to collapse
Any solution to unlock this carrier locked phone without buying the unlock tools?
mr_coimbatore, I'm having exactly the same problem with a China Unicom I9082 here in Shanghai. Sadly I still haven't been able to find a solution, after weeks of searching.
It's actually a friend's phone, he bought it because he wanted a dual SIM Android handset, though foolishly bought it straight from Unicom rather than from an electronics market. I told him I'd get rid of the China Unicom firmware for him as it is obviously crippled by design like all Chinese Android stock ROMs. I've managed to install k2wl's Ultralite ROM on the handset but I'm facing the same issue as you - the baseband remains untouched from the one that was on the original ROM (I9082ZNAMB3), but it's stuck in flight mode. Can receive calls/texts, cannot make them.
The big clue that there is some kind of lock in place is the fact that one of the original Chinese logos still appears on boot. Flashing a custom ROM should remove all the stock boot logos.
I get exactly the same error when trying to update the baseband with Odin (I tried several basebands and all had exactly the same error as the one you quoted in your first post), so it seems that what we have here is a baseband lock combined with an incompatibility between the existing baseband and the custom ROM (or, more likely, any ROM that isn't the stock ROM provided by China Unicom). If we can remove the baseband lock and update the baseband to one that is compatible with the custom ROM, we should be in business. Sadly, that's as far as I've got.
The annoying thing is that the SIM cards being used on the phone are both China Unicom, so it's not as if I even need the phone to be factory unlocked for use on any network - I simply need it to be able to make outgoing calls/texts on Unicom!
I have seen sites offering an unlock service by IMEI, for example unlocksamsungonline.com, who claim to provide both NCK (network unlock codes) and SPCK (service provider unlock codes), which seem to be what we need in order to unlock the phone without expensive equipment.
However, I have no idea how genuine/reliable these kinds of sites are or if they even work at all (or if they're even legitimate at all), and I'd rather not spend $18.95 USD on an unlock code that doesn't end up working. Also, given that it's a dual SIM phone it's going to have 2 IMEI numbers, so I'm not sure if I'd have to pay double to unlock it or if just one would do the trick!
I've not yet had the time to take the phone to an electronics market in the hope that somebody there understands the issue and has the equipment to remove the baseband lock. In almost all of my previous experiences with electronic markets here in Shanghai, I've found that their hardware knowledge is fantastic (not surprising given that the phones are made in China), but their software knowledge is generally quite poor. I actually spent almost an hour one day explaining to an iPhone engineer that he could in fact upgrade an iPhone's software while preserving an (unlockable) baseband, simply by making a custom ISPW with Pwnagetool or similar that would flash the new firmware without flashing the baseband. He and several of his coworkers claimed that it was impossible, and when I showed them my iPhone that was running the updated iOS while still on an old baseband, until I managed to explain the entire process he thought I had hacked the phone somehow to display a different baseband version... the whole experience was incredibly frustrating and to be honest has left me thinking that I can probably find out more online whenever I've had any kind of software issues with any devices.
Anyway. If you happen to have some success before I do, please let me know! I'll do the same.
Solution
kinggimped said:
mr_coimbatore, I'm having exactly the same problem with a China Unicom I9082 here in Shanghai. Sadly I still haven't been able to find a solution, after weeks of searching.
It's actually a friend's phone, he bought it because he wanted a dual SIM Android handset, though foolishly bought it straight from Unicom rather than from an electronics market. I told him I'd get rid of the China Unicom firmware for him as it is obviously crippled by design like all Chinese Android stock ROMs. I've managed to install k2wl's Ultralite ROM on the handset but I'm facing the same issue as you - the baseband remains untouched from the one that was on the original ROM (I9082ZNAMB3), but it's stuck in flight mode. Can receive calls/texts, cannot make them.
The big clue that there is some kind of lock in place is the fact that one of the original Chinese logos still appears on boot. Flashing a custom ROM should remove all the stock boot logos.
I get exactly the same error when trying to update the baseband with Odin (I tried several basebands and all had exactly the same error as the one you quoted in your first post), so it seems that what we have here is a baseband lock combined with an incompatibility between the existing baseband and the custom ROM (or, more likely, any ROM that isn't the stock ROM provided by China Unicom). If we can remove the baseband lock and update the baseband to one that is compatible with the custom ROM, we should be in business. Sadly, that's as far as I've got.
The annoying thing is that the SIM cards being used on the phone are both China Unicom, so it's not as if I even need the phone to be factory unlocked for use on any network - I simply need it to be able to make outgoing calls/texts on Unicom!
I have seen sites offering an unlock service by IMEI, for example unlocksamsungonline.com, who claim to provide both NCK (network unlock codes) and SPCK (service provider unlock codes), which seem to be what we need in order to unlock the phone without expensive equipment.
However, I have no idea how genuine/reliable these kinds of sites are or if they even work at all (or if they're even legitimate at all), and I'd rather not spend $18.95 USD on an unlock code that doesn't end up working. Also, given that it's a dual SIM phone it's going to have 2 IMEI numbers, so I'm not sure if I'd have to pay double to unlock it or if just one would do the trick!
I've not yet had the time to take the phone to an electronics market in the hope that somebody there understands the issue and has the equipment to remove the baseband lock. In almost all of my previous experiences with electronic markets here in Shanghai, I've found that their hardware knowledge is fantastic (not surprising given that the phones are made in China), but their software knowledge is generally quite poor. I actually spent almost an hour one day explaining to an iPhone engineer that he could in fact upgrade an iPhone's software while preserving an (unlockable) baseband, simply by making a custom ISPW with Pwnagetool or similar that would flash the new firmware without flashing the baseband. He and several of his coworkers claimed that it was impossible, and when I showed them my iPhone that was running the updated iOS while still on an old baseband, until I managed to explain the entire process he thought I had hacked the phone somehow to display a different baseband version... the whole experience was incredibly frustrating and to be honest has left me thinking that I can probably find out more online whenever I've had any kind of software issues with any devices.
Anyway. If you happen to have some success before I do, please let me know! I'll do the same.
Click to expand...
Click to collapse
Hi, Yes I found the solution.
Thanks to tonylin880806 who provided me some links.
I am in Shanghai as well. I took my phone to electronics markets in Xujiahui and Zhangyang Road. In both places, every one said they cannot do anything. The reason may be they don't know or do not want to take any risk or bricking the phone.
Also I went to Samsung service center, they said I have void my warranty. I asked them only to restore the original firmware. But he said the only option is to change the CPU and that will cost more money. I asked for alternate options and he said no.
Then, I re-explored the posts asked if Tony has send me an option
At first, you should upgrade ZNAMB3 to ZNAMD1 with Odin. ZNAMD1 is the office OTA upgrade for ZNAMB3 sent by Samsung.
You can use below link for ZNAMD1 : http://pan.baidu.com/share/link?shar...&uk=3590848074
to download ZNAMD1 which is official and push this through Odin.
So now you will be back with your original firmware without google account.
After this, you can root the phone with CWM.
Then you can load any compatible custom ROMs. But you should note that our handsets cannot load firmwares of all countries. Might be they are firmware locked or modem not compatible for other region firmwares.
I have loaded below custom ROM which is very similar to original firmware with google account. This is really good.
ZNAMD1_rc2 - http://pan.baidu.com/share/link?shareid=517042&uk=2030731697
Also, in this your memory card is swapped with internal memory and have chrome browser. USB OTG is missing.
Only problem I face is, when I install google talk apk there is some problem. Whenever I get an incoming notification from google talk, it hangs and it says process.google.com stopped. So I have installed hangout and its ok with hangout now.
Hope this helps you.........
mr_coimbatore said:
Hi, Yes I found the solution.
Thanks to tonylin880806 who provided me some links.
I am in Shanghai as well. I took my phone to electronics markets in Xujiahui and Zhangyang Road. In both places, every one said they cannot do anything. The reason may be they don't know or do not want to take any risk or bricking the phone.
Also I went to Samsung service center, they said I have void my warranty. I asked them only to restore the original firmware. But he said the only option is to change the CPU and that will cost more money. I asked for alternate options and he said no.
Then, I re-explored the posts asked if Tony has send me an option
At first, you should upgrade ZNAMB3 to ZNAMD1 with Odin. ZNAMD1 is the office OTA upgrade for ZNAMB3 sent by Samsung.
You can use below link for ZNAMD1 : http://pan.baidu.com/share/link?shar...&uk=3590848074
to download ZNAMD1 which is official and push this through Odin.
So now you will be back with your original firmware without google account.
After this, you can root the phone with CWM.
Then you can load any compatible custom ROMs. But you should note that our handsets cannot load firmwares of all countries. Might be they are firmware locked or modem not compatible for other region firmwares.
I have loaded below custom ROM which is very similar to original firmware with google account. This is really good.
ZNAMD1_rc2 - http://pan.baidu.com/share/link?shareid=517042&uk=2030731697
Also, in this your memory card is swapped with internal memory and have chrome browser. USB OTG is missing.
Only problem I face is, when I install google talk apk there is some problem. Whenever I get an incoming notification from google talk, it hangs and it says process.google.com stopped. So I have installed hangout and its ok with hangout now.
Hope this helps you.........
Click to expand...
Click to collapse
Dude thanks so much for the walkthrough, I'm going to try that right now!
However, your first link doesn't work. Can you fix it so I can download the ZNAMD1 firmware please?
kinggimped said:
Dude thanks so much for the walkthrough, I'm going to try that right now!
However, your first link doesn't work. Can you fix it so I can download the ZNAMD1 firmware please?
Click to expand...
Click to collapse
First link is the official firmware ZNAMD1. You can even download the same from samfirmware or anyother websites.
mr_coimbatore said:
First link is the official firmware ZNAMD1. You can even download the same from samfirmware or anyother websites.
Click to expand...
Click to collapse
Yeah, the link you posted has the '...' in it, which ruins the URL. It's the not the complete URL. Do you have the full URL to download it on Baidu? It will be much faster than downloading it from another site, as you know from living in China and having to deal with Chinese internet connections
I just want to make sure I'm downloading the correct version. Is this the right one?
http://pan.baidu.com/share/link?shareid=419656&uk=554171356
---------- Post added at 10:40 PM ---------- Previous post was at 09:54 PM ----------
I got it working. Thanks SO much for your help, my mate will be really happy with it! All he wanted was Google stuff. That updated firmware did the job.
Thanks again!
Google Talk is now replaced by hang out..
Sent from Gt-I9082 stock AMCD firmware
hangout is cool
mr_coimbatore said:
Hi, Yes I found the solution.
Thanks to tonylin880806 who provided me some links.
I am in Shanghai as well. I took my phone to electronics markets in Xujiahui and Zhangyang Road. In both places, every one said they cannot do anything. The reason may be they don't know or do not want to take any risk or bricking the phone.
Also I went to Samsung service center, they said I have void my warranty. I asked them only to restore the original firmware. But he said the only option is to change the CPU and that will cost more money. I asked for alternate options and he said no.
Then, I re-explored the posts asked if Tony has send me an option
At first, you should upgrade ZNAMB3 to ZNAMD1 with Odin. ZNAMD1 is the office OTA upgrade for ZNAMB3 sent by Samsung.
You can use below link for ZNAMD1 : http://pan.baidu.com/share/link?shar...&uk=3590848074
to download ZNAMD1 which is official and push this through Odin.
So now you will be back with your original firmware without google account.
After this, you can root the phone with CWM.
Then you can load any compatible custom ROMs. But you should note that our handsets cannot load firmwares of all countries. Might be they are firmware locked or modem not compatible for other region firmwares.
I have loaded below custom ROM which is very similar to original firmware with google account. This is really good.
ZNAMD1_rc2 - http://pan.baidu.com/share/link?shareid=517042&uk=2030731697
Also, in this your memory card is swapped with internal memory and have chrome browser. USB OTG is missing.
Only problem I face is, when I install google talk apk there is some problem. Whenever I get an incoming notification from google talk, it hangs and it says process.google.com stopped. So I have installed hangout and its ok with hangout now.
Hope this helps you.........
Click to expand...
Click to collapse
isit this rom ZNAMD1_rc2 hhas French in its language list ? I have one to put french language !
Thx advanced !
it also work on a Unicom duos thx you @mr_coimbatore , after ZNAMD1 I flashed this I9082XXAMF7 custom rom and work correctly ...both sim working fine !!
I9082xxamf7
psytr0nic said:
it also work on a Unicom duos thx you @mr_coimbatore , after ZNAMD1 I flashed this I9082XXAMF7 custom rom and work correctly ...both sim working fine !!
Click to expand...
Click to collapse
Hi, Can you please send me the link from where you downloaded I9082XXAMF7 custom rom.
mr_coimbatore said:
Hi, Can you please send me the link from where you downloaded I9082XXAMF7 custom rom.
Click to expand...
Click to collapse
I took it there : #LINK not really customized , just rooted . Roms are 100% samsung stock one according to OP and what I saw too . nothing missing .
psytr0nic said:
I took it there : #LINK not really customized , just rooted . Roms are 100% samsung stock one according to OP and what I saw too . nothing missing .
Click to expand...
Click to collapse
Thanks for the link. It works perfectly.
XXAMF7 got loaded on the baseband version of ZNAM2.
I have the same problem like yours. As soon as it was loaded it said there is a software update, but when say OK to update the software it keeps searching. Have you got any solution for this?
Also, did you try if you upload the stock ROM of XXAMF7 on the unicom Duos? Whether the radio works?
psytr0nic said:
I took it there : #LINK not really customized , just rooted . Roms are 100% samsung stock one according to OP and what I saw too . nothing missing .
Click to expand...
Click to collapse
After update, firmware is still 4.1.2??
Do you have USB on the go (OTG) option. (Means can you connect the USB flash drive to you mobile by means of a adaptor cable??

[Q] Changing SM-T325 Stock ROM Regions: Gotchas?

I've asked portions of this before in this forum, but am asking again in more detail to make sure I comprehend what I'm contemplating...
1) I understand that I can REPLACE a stock ROM from one region (BRI) with a stock ROM from a DIFFERENT region (BTU) as long as the replacement (BTU) is at dated at least as recently as the one being replaced (BRI). And doing so via ODIN won't trip KNOX.
2) Is it necessarily the case that such a replacement will wipe all of my current settings?
3) Will a manual (non-OTA) update of the existing ROM w/o changing regions ALSO wipe my current settings? (I've used TR so can't use the OTA option anymore)
Reading in this forum seems to indicate "YES" to both 2 & 3, but I seem to have run across different thoughts elsewhere. I know when I've done OTA updates, there's usually a warning that I will or might lose all my settings, though that's never happened to me.
Thanks for the patience.

Problem after changing CSC

Hello,
I have changed the CSC of my Active 2 44mm (not LTE). Everything has been correct, except for two things:
1 - I still get the green letters when I start the clock, on the Samsung Galaxy Watch Active 2 presentation
2 - Now I try to upgrade by OTA (through the phone's app) and when it reboots, it says that the firmware could not be installed.
How do I fix both? Thanks
Put everything back the way it was (Fully Restore to Default) and try to update software.
Are you able to identify Model Name?
I hate this mm nons.nse.
Example:
SM-R820?
I am too lazy to google how long is yours... Firmware.
Colors in Booting is Engineer Bootloader sboot.bin (from Combination firmware) is still on device... this brings FOTA over the air to fail...
Because wrong Bootloader on device... from "chain of trust" selfcheck...
Best Regards
hi, I have a similar issue with the sm-r825f, after I changed csc to Germany... I got a watch from UK (BTU) unfortunately and wasn't able to set up esim. Now after I changed csc and flashed R825FXXU1ASJ3, esim works fine but I am stuck on ONE UI 1.5 and scanning for updates keeps failing.
What's the easiest way to make OTA work again?
Can I simply reflash a certain firmware? Can you recommend or link the files?
Sry if any information is missing!
Thank you all for your help!

How to change the service provider software version? S20 (SM-G980F)

Hello guys!
I have a sim unlocked Galaxy S20 (SM-G980F) from Orange Romania and I want the new update (Android 12 and OneUI 4) and to get rid of the pre-installed apps from Orange. Apparently it is a known fact that some mobile network operators tend to postpone the new firmware updates (which I think it's stupid) because they have to 'test' it and load it with a bunch of useless apps that nobody needs. It wouldn't have been such a problem if this would happen in a timeframe of a few days, but usually it takes months. I contacted Orange and they said the upcoming update is being 'tested' and it will probably be released sometime in March (which again, it's just stupid).
I am looking for a way to change the Software Service Provider from ORO to ROM (or something else, to get the update directly from Samsung and not Orange); Samsung and Vodafone already rolled the update.
So, I have a few questions:
1. Can I change the Service Provider? (SM-G980F on Android 11)
1.1. If yes, how can I do it? Can you guys kindly guide me towards a tutorial?
1.2. Can I do it for free?
2. Should I just install a custom ROM? (I have seen many on this forum, but most of them seem to have problems if the high refresh rate is enabled etc... any reccomendations?)
Thank you guys! Any advice is much appreciated!
PS: I am kind of unfamiliar with these things, i used to flash custom ROMs on my old phones back when Cyanogenmod was a thing and I've used Android since 1.5. I don't know what changed and what's new so any help is welcome! Thank you!
First off, why do you even want Android 12 so badly? Early adopters catch all the bugs. And moreover, if you want to mod your phone, you'll quickly notice that a lot of popular mods aren't yet available for Android 12. As of today:
There still is not an official Magisk release for Android 12 (only Canary/pre-release builds).
Xposed module GravityBox for Android 12 has not been released.
Xposed module Firefds Kit for Android 12 has not been released.
And if you start modding, you're likely to find more things that just don't exist for A12 yet.
1. Can I change the Service Provider? (SM-G980F on Android 11)
Click to expand...
Click to collapse
Yes.
1.1. If yes, how can I do it? Can you guys kindly guide me towards a tutorial?
Click to expand...
Click to collapse
It used to be fairly easy. You could open the Preconfig dialog with a dialer code and change your CSC code. Loss of this functionality in recent software is lamented loss of this functionality in recent software is lamented here. There are many discussions about changing CSC code that make mention of the commercial software and service Samkey such as this and this; I have no personal experience with their offering so I can't recommend them. Interestingly it seems from the discussions that there is typically some lag between an Android release and support for that release from Samkey, so the trend I just referenced above is hardly an isolated phenomenon.
It's worth mentioning that the changing of CSC codes has been discussed extensively throughout the forum. One of the downsides of XDA though is that discussion is heavily segregated by device, so you can easily miss what you're looking for if you search only in a sub-forum for your device.
1.2. Can I do it for free?
Click to expand...
Click to collapse
With root, certainly. Otherwise, it is not so clear based on the above.
You can launch the Preconfig dialog from a root shell:
am start -n com.samsung.android.cidmanager/.preconfig.PreconfigActivity
I've noticed that in some configurations (notably when CSC code is VZW), the Preconfig dialog seems to be somehow disabled. However, with root access you can also simply edit /efs/imei/omcnw_code.dat.
2. Should I just install a custom ROM? (I have seen many on this forum, but most of them seem to have problems if the high refresh rate is enabled etc... any reccomendations?)
Click to expand...
Click to collapse
That's your choice. Browse the ROM section and see if there is anything available for your device that you like. Custom ROMs vary greatly in user experience as a consequence both the ROM's objectives and the developer's skill.
They all have a few things in common though: they will irrevocably trip the warranty void bit and cause a loss of Knox-related functionality (notably including Samsung Pay). They also will prevent you from receiving official OTA updates.
Another option is that you can simply root your device and start modding away yourself. Basically, that workflow is something like this:
OEM Unlock.
Boot into download mode with vol up + vol down + insert USB cable connected to PC.
Volume up to confirm unlock.
Flash TWRP from ODIN.
Flash Multi-disabler from TWRP.
Wipe /data from TWRP.
Install Magisk from TWRP.
Once you have root, you can not only change your CSC code as desired, but edit the read-only filesystems on your device, notably including the filesystems containing the CSC. It's even possible to blow away the CSC content completely and integrate the CSC content from the ROM of another region.
Of course, it goes without saying that you need to back up anything important on your phone before you start any experiments. Of particular importance, be sure to back up efs and sec_efs with TWRP and make sure the backups are stored somewhere safe (e.g., on a PC) before you start attempting any changes to efs partitions. A damaged efs partition is one of the easiest ways to render your phone useless. Note also that custom ROM installation almost always involves wiping /data somewhere along the way.
So, the bloatware you talk about is located in /product , /hidden or /odm depending on how your phone is configured. I can help you out contact me on telegram @cha0scl0wn. Regards.
Thank you guys so much for your replies!
I managed to launch the Preconfig dialog (dialing *#272*62826# in the stock phone app - other codes did not work, also tried the google phone app - nothing) but the only options to change the CSC are those in the picture (AMO - Orange Spain, FTM - Orange France etc). Basically I can select another Orange CSC which does not help. I want to change it to unbranded, to get the firmware updates directly from Samsung.
Now, if I root the phone, will I be able to change ORO to unbranded? But I'm a bit confused because rooting cancels OTAs, right? So I need to root, change CSC to unbranded (if possible) and then install the update myself? But then I will have to manually install every update?
If I root, change CSC to unbranded, install the update, unroot will I get the OTAs?
Rooting also kills Knox and Samsung Pay?
Thanks again guys for responding! I appreciate it! Cheers!
I managed to launch the Preconfig dialog (dialing *#272*62826# in the stock phone app - other codes did not work, also tried the google phone app - nothing) but the only options to change the CSC are those in the picture (AMO - Orange Spain, FTM - Orange France etc). Basically I can select another Orange CSC which does not help. I want to change it to unbranded, to get the firmware updates directly from Samsung.
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Wow--you got lucky: I wasn't expecting the dialer code to work based both on my own experience and reports here on the forum. The Preconfig dialog is really just a testing tool: it allows you to select other CSC codes that already exist within the firmware and see the effects of those setting changes. I don't know if there is an effective unbranded configuration included on the OXM package (i.e., similar to XAA in the OYN package).
I don't have a lot of experience with the OTA updates (all my devices are unlocked).
Now, if I root the phone, will I be able to change ORO to unbranded? But I'm a bit confused because rooting cancels OTAs, right? So I need to root, change CSC to unbranded (if possible) and then install the update myself? But then I will have to manually install every update?
Click to expand...
Click to collapse
You'll still be able to select any CSC. I suppose in theory you could create your own CSC configuration for an imaginary carrier, but the route that I took was different. I stripped out all the unwanted junk out of the optics and prism images (along with de-bloating I did in a lot of other places in the ROM). I also edited all the XML configuration files that ship with the CSC to my liking (think: call recording on, shutter sound menu on, etc). After installing the resulting ROM, there was pretty much no carrier-specific software running on the device; splash screens, sounds, and other markings were also gone. I actually ended up adding a handful of carrier-specific content back to my ROM to get Wi-Fi calling working since it appears that the carrier I use (VZW) has a slightly nonstandard implementation of the feature.
But yes, once you head down this path, you'll be updating your phone by yourself, and it likely won't be the most enjoyable activity. I also don't feel the need for every single update, and I especially have no interest of moving to A12 in the foreseeable future.
Keep in mind that you should be able to pm disable bloatware packages that are really bothering you even without rooting/unlocking your bootloader.

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