yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy Note 8 Questions and Answers] shouren04:
Launch 467 with Shortcut Master or Phone INFO
[Samsung Galaxy Note 8 Questions and Answers] gundal:
I totally read that from joon and I thought that was *#77467# which just lets you see the debug screen of 467...

also 467 doesn't even require root which was very useful to be able to see it on my unrooted note 7

adb shell am start -n com.samsung.advp.imssettings/.ImsSettingsLauncherActivity
[Samsung Galaxy Note 8 Questions and Answers] Techvir:
[MENTION=2827817]gundal[/MENTION] I am kind of in a little soup now.

Background - I got an UK note 8 ( N950F) from handtec for use in Rogers.

It seems to have all the bands that Rogers needs.

So flashed rogers csc with the moded csc selection tool for s8.

I am getting LTE signal.

Problem - The issue is that the signal has been horrible. I compare to S8 plus and moto phone with network signal app or the LTE discovery app. I find that the signal strength is around 15-20 db different. Speed test also shows a significant difference in speeds.

I have been reading this thread and specifically your posts. It does not seem like you have a signal issue but only the Volte issue.

My software version is still BTU

ANy suggestions for me.

Ps: sorry for being off topic.

Thanks for Contacting CRTC
[Samsung Galaxy Note 8 Questions and Answers] gundal:
Hey np, thats what xda is for, well maybe Kalm doesnt want us polluting his thread lol.

ok SO as far as service goes, nope I get exactly the same db signal strenght on my note 8 as my note 7 (which is rogers) however on my note 8 that displays as 2/5 bars while on rogers note 7 same db rating gets 4/4 bars.

Essentially its a display issue (for me this is)

I as you may have seen can pull 200Mb/s most of the time.

When you say your csc is still blah, how does it show in the software info menu

RWC/RWC/BTU or is it BTU/BTU/BTU?
[Samsung Galaxy Note 8 Questions and Answers] Techvir:
U have the 950N , correct ?

Mine is 950F . Tmobile users have reported significant issues with signal due failed carrier aggregation. I think I am in the same boat. I will do some more testing comparing with another device.

In settings >About phone > software information> service provider SW ver - RWC//BTU
[Samsung Galaxy Note 8 Questions and Answers] gundal:
OK that means you are definitely missing some important **** lol

I believe it is

OS CSC/Network Settings CSC/Initial CSC

When you do *#272*[YOUR_IMEI]# you get to the Preconfig menu which lets you change your CSC (to other ones available in your multi rom) when you hit install, you get an option to install FULL OS Customization or Network Settings Customization. If you do network, only the middle one changes, and if you do full the first two change.

I am going to assume, you changed to RWC code, without having the RWC files present on your system. Even better why don't you tell me how you attempted to switch your csc to RWC..

Did you try using kalms zip but modifying installer or mps_code.dat to RWC ?
[Samsung Galaxy Note 8 Questions and Answers] Techvir:
I flashed a modified CSC selection tool to make it compatible with note 8

When I run the code it says preconfig does not support single CSC

I did not try kalms Zip...too complicated for me to edit
[Samsung Galaxy Note 8 Questions and Answers] gundal:
Sounds like whatever tool you ran left only RWC csc on your device.

well you just need the RWC folder from the omr.img in the stock rom..

but for now. I would backuo everything you have, flash back to stock and test your connection at that point.. verify you can even get it better, then start changing stuff, I can make a rwc csc zippable file.. in a bit here
[Samsung Galaxy Note 8 Questions and Answers] Techvir:
An rwc zip would be great.

Stock rom is BTU from UK. I tried that a couple of days ago but the data connection was poor with only edge
[Samsung Galaxy Note 8 Questions and Answers] gundal:
Use smart switch and Windows to restore to stock, it's much faster. Just do emergency firmware restore with your model and serial number

BUT make sure your twrp backup is in your microsd, or smart switch will probably delete your twrp backups when it restores.
[Samsung Galaxy Note 8 Questions and Answers] Techvir:
I flashed dr.ketans csc zip file for xac from his rom thread and I now have RWC/RWC/BTU. Am I all set?
[Samsung Galaxy Note 8 Questions and Answers] Kalm_Traveler:
On my N stock is SKC/SKC/SKO (my device is SK Telecom branded). Do we know what the T-mobile 950U is? I don't think that 3rd code has any impact but just curious.
[Samsung Galaxy Note 8 Questions and Answers] gundal:
Third code is your SIM derived CSC.

AFAIK its like the knox flag and cannot be changed after written to....

ive been trying to change it

Do you guys know if magisk 14.0 no longer works with CtsProfie? did google circumvent it again?

---------- Post added at 06:46 PM ---------- Previous post was at 06:46 PM ----------

should be.. hows your signal strength?
[Samsung Galaxy Note 8 Questions and Answers] Kalm_Traveler:
pretty sure that's not possible since my SIM is T-Mobile. I do know that in the EFS/IMEI folder there is a file called replace_code.dat which has only SKO in it (that being the 3rd code of my CSC).
[Samsung Galaxy Note 8 Questions and Answers] gundal:
When you buy a phone internationally, they open up the box, put their sim card in activate the phone go through the setup and then ship it to you.

At least they did on my 9200 and my 950N

Did you remember seeing the do not open if seal is broken sticker being already cut on yours?

I am pretty sure if they do not "activate" the phone with one of the CSC that are included in the multiroms then it cant even be used. At least this is why they say they do this inital sim card inserting.
[Samsung Galaxy Note 8 Questions and Answers] Techvir:
My signal is better and I have been comparing with few others and seem to match it.

My phone came from UK with region lock and sealed from Handtec. However Rogers sim worked with no problems even though the box was saying that I need to region unlock with a 5 min call.

I have never used a UK sim with this phone.. Don't think the third part of the Rwc/rwc/BTU is to do with sim... May be related to the region lock?
[Samsung Galaxy Note 8 Questions and Answers] Kalm_Traveler:
it was not broken - the Korean models have never been SIM or carrier locked AFAIK. My Note 8 is an SK Telecom N950N. This has been the case since at least the Note 5 as I was in Korea when it launched and talked to Samsung at one of their retail locations.

The European models do require that initial local SIM activation though, per vendors like Clove.
[Samsung Galaxy Note 8 Questions and Answers] gundal:
SO the box said you need to region unlock, but the phone never said that or complained about it? are you SURE, that handtec didnt do the region unlock before shipping it to you?

---------- Post added at 07:14 PM ---------- Previous post was at 06:59 PM ----------

That is interesting..

My N950N was from LGU+

the last CSC is LUC

They told me they had to put in a sim card (they did not say it was region locked) but they did say it would not work without making a call on their sim/network.

My seal was cut.

Also. no mater how hard I try... I cannot get back to the LUC (LGU+) firmware.

I have tried reflashing in ODIN, even smart switch... it ALWAYS comes back SKC/SKC/LUC

and the Preconfig csc switching code doesnt work on our stock roms.

I think I added the preconfig from the W rom and was able to get the code working, Ishould try that again and see if it lets me pick LUC.

---------- Post added at 07:27 PM ---------- Previous post was at 07:14 PM ----------

I changed replace_code.dat a while ago, it had no effect.
[Samsung Galaxy Note 8 Questions and Answers] Kalm_Traveler:
You mentioned that your 3rd code is LUC? that is curious because I thought that the SKO code was just a generic region code for South Korea (since the specific CSC code for SK Telecom is SKC, not SKO). This would have led me to assume that your 3rd code would also be SKO, and the first and second being LUC.
[Samsung Galaxy Note 8 Questions and Answers] gundal:
That is correct LUC

When I first got it it was

LUC/LUC/LUC

after an odin or SS recovery flash its

SKC/SKC/LUC

or

RWC/RWC/LUC after I modified it

It used to boot up say samsung, then LG with their logo in pink it was pretty funny but yea havent been able to get back to that
[Samsung Galaxy Note 8 Questions and Answers] Kalm_Traveler:
have you made sure that you have the LUC files in /system/omc (the sub folder LUC and it's contents) as well as set the sales_code.dat in omc to be LUC?

If your IMEI folder's mps_code.dat and omcnw_code.dat are both LUC, and you have those other omc files it would have to load the correct LUC boot video and sound...

If I change mps_code.dat + omcnw_code.dat and sales_code.dat to whatever CSC I want to use, it loads it upon reboot.

I'm curious why your LG U+ device would not have the same region code as my SK Telecom device. You might want to try changing that replace_code.dat to SKO (since SKO is a region code, not a carrier specific code) and see if that makes any difference.

I've specifically swapped between SKC (SK Telecom), LUC (LG U+), TMB (T-Mobile) and XAA (unbranded USA) back and forth probably a dozen times so far, but I never changed the replace_code.dat from SKO, it has always remained that.
[Samsung Galaxy Note 8 Questions and Answers] gundal:
Thanks I will manually try chaning that..

it just seems like a huge f up from samsung tho..

If you are not rooted, you cannot reload LUC.. even via smart switch.. ill do the SKO thing now
[Samsung Galaxy Note 8 Questions and Answers] masri1987:
my n950n is from LGU+ too, and i was told they don't need to be "sim unlocked" with 5 minute regional sim call
[Samsung Galaxy Note 8 Questions and Answers] gundal:
thats odd ... I wish mine was not cut open and used previously then...

I distinctly remember it being cut, and on first boot I didnt even have to do a setup, after I rewiped the setup appeared..

VERY ODD INDEED [MENTION=2694397]masri1987[/MENTION] your last CSC is LUC? or SKO?

[MENTION=4375750]Kalm_Traveler[/MENTION] or anyone else reading this... does safetynet : ctsProfile still work for you? or did safetynet update their detection..

It suddenly stopped passing for me, I would rather find outit got changed then reflash everything all over in an attenpt to restore android pay to working
[Samsung Galaxy Note 8 Questions and Answers] masri1987:
LUC sir.

And i just accidently wiped my SD card, so i'm going fully nuclear and starting over again.

I think i'm driving myself insane with this issue. I'm obsessed. I need help.
[Samsung Galaxy Note 8 Questions and Answers] gundal:
which issue? the ****ty connection?
[Samsung Galaxy Note 8 Questions and Answers] masri1987:
Yeah, it has a mind of it's own man. I was on a known Non-CA set up that was pulling 90mbps at home, i go to downtown phoenix where cellsite's were plenty, and i couldn't get on band 4 or 2 even when i forced it, it persisted on band 12, sometimes even dropping to H+.

CA setups are not-usable to me.
[Samsung Galaxy Note 8 Questions and Answers] Kamikaze_Ice:
I did my fair share of searching the forums about this third CSC set as I assumed all three had to match and was so confused why I was failing a simple process...

Turns out the THIRD set for CSC (xxx/xxx/XXX) is the ORIGINAL CSC of the device.

You don't (shouldn't) change this as it has no practical/technical/potential impact on anything, this is purely visual.

While you can change it, somehow, I recall seeing posts from users who tried and caused more problems (like erasing IMEI and similar info).
[Samsung Galaxy Note 8 Questions and Answers] Kalm_Traveler:
That doesn't make sense to me either. Mine out of the box (a previously unopened box mind you) was SKC/SKC/SKO. SKO is a generic South Korea region code as far as I can tell from the forums and Google. The multi CSC on these is OYN, so that doesn't make sense either (the base CSC for all the American Note 8's is XAA, even if they are not unbranded - their active CSC will simply be whatever carrier they bought from, so ATT, TMB, VZW, SPR, or what have you).

I may have something mixed up so if I do please tell me.
[Samsung Galaxy Note 8 Questions and Answers] :
When I got my N950N, it was from KTC and the box had been previously opened (so I suspect a SIM card was inserted).

After I installed TWRP, I performed an advance wipe (which resulted in my losing the ability to boot into the OS).

I loaded up Odin and installed BL, AP, CP, but NOT CSC.

Now I have 4G+, can enable roaming, and found my network speeds have improved.

The caveat to doing this is you will have duplicate categories under 'Settings'.

For example, even though 'Battery' is available under 'Device Maintenance', there will specifically be a 'Battery' category on its own.

As well, because there are no specific CSC settings, all hidden APKs tied to their respective carrier, are now present in your App. Drawer but can be removed via Root/ADB.

I love this variant of the Note 8 but it does NOT come without its hassles.
[Samsung Galaxy Note 8 Questions and Answers] gundal:
guys....

Did anyone else lose magisk ctsprofile check?

Or better question does anyone still pass safetynet with our phone?
[Samsung Galaxy Note 8 Questions and Answers] masri1987:
I have it
[Samsung Galaxy Note 8 Questions and Answers] gundal:
ok thanks I must have messed up my system trying to do some things..

Appreciate that, I will start over
[Samsung Galaxy Note 8 Questions and Answers] Kalm_Traveler:
Wiped all phone app data and cache, flashed Notorious kernel, and then wiped vm cache and cache in TWRP. Now I get these RCS and VoLTE status bar icons.

I think we are in business folks :D
[Samsung Galaxy Note 8 Questions and Answers] Kalm_Traveler:
Also... I just found this http://tekhd.com/s8/#s8tmofrom TEKHD, flashed it and everything is "still" working, but I still don't see the Tmobile Wifi calling icon or menu anywhere.

Going to try doing a full factory reflash back to stock N950N and try TEKHD's file first since it is for an S8+ and in theory should be everything we need (plus it is only 87 MB)
[Samsung Galaxy Note 8 Questions and Answers] Kalm_Traveler:
Odin flashed back to stock N950N, re-rooted, then flashed a new zip I made today from the T-Mobile N950U files and using TEKHD's script from his S8+ Tmo pack. After a factory reset, re-root and Notorious kernel I have different icons and many more menu items (from TEKHD's others.xml CSC file), but still no Wi-Fi calling as far as I can tell.

VoLTE is definitely working and in the settings menu now, HD calling and video calling work on LTE and Wi-Fi, but the Wi-Fi Calling is still eluding me.

New zip is 87mb, basically the same as Tek's S8+ pack. If I can get the Wi-Fi Calling to show up and work I'll ask him if I can post my zip for you guys since it is using his script and others.xml
[Samsung Galaxy Note 8 Questions and Answers] Kamikaze_Ice:
Thanks for sharing, I'll be revisiting this thread once I get down to doing this myself (same phone as you, even used the same ebay seller (thanks by the way for that), but I plan to use my with AT&T as my carrier).

I'm only familiar with HTC devices, so I hope you don't mind me asking what may be a silly question. How Samsung handles firmware is way different than HTC, so it's totally confusing to me coming from that perspective and trying to figure out what you started with as your base.

What were you doing with the firmware? I assumed you started with the latest & full firmware for N950N+SK Telcom. Although in your sig says debloated, so I'm assuming this means you flashing another firmware (N950F? Nemesis?)

From what little I've read so far I was under the assumption that any Exynos firmware was fine to use EXCEPT the bootloader portion which should stay to whatever the device shipped with (or updates to that shipped firmware), and CSC stuff wasn't chipset restricted.

The first step is a doozy, but the water feels great. Just need to start diving now. :)
[Samsung Galaxy Note 8 Questions and Answers] Kamikaze_Ice:
Cheers for all that.

Looking for file size differences is a good idea. But if that is not fruitful you may need to compare contents too. Notepad++, while being extremely useful for coding (format specific color coded syntax highlighting) it has a fantastic compare plugin which you might find beneficial in this context (it's completely free, no bundled crap/ads/locked features/"buy me!" promts). Highlights differences with in a color coded fashion and shows completely new/missing lines.

I use it so much I completely replace Notepad.exe in on every version of Windows since XP (currently on 10).

I seem to recall reading that AT&T has one feature, WiFi Calling I think, that will never work on any device not from them. Or was it any international/foreign devices ('cause different hardware ala snapdragon vs exynos)? I hope that isn't the case for you (T-Mobile). I really hate that about our carriers.

I just now realized what I said when asking about the debloat. For whatever reason at the time I wrote that, I was reading it as if you were using an unlocked rom with no carrier crap instead of just removing it from your stock rom, lol.

*smacks head* Why did I think this? lol.
[Samsung Galaxy Note 8 Questions and Answers] Kalm_Traveler:
ok here is the latest version of the small T-Mobile CSC pack (basically swapped out files and minor script editing from [MENTION=4107827]TEKHD[/MENTION] 's S8+ pack).

Just as an FYI it's not perfect yet, WiFi Calling is still not working (though I have the quick toggle and it's 'trying' to enable, default theme it is faded out).

Other than Wifi Calling (which sadly is my main goal), everything in TEKHD's S8 pack here is/should be working as it does on the S8+ F variant (his original pack here: http://tekhd.com/s8/#s8tmo )

Instructions that I had to do to get it working are as follows:

from stock, turn on Developer Mode, enable OEM Unlock, usb debugging, per usual

on stock N950N, flash TWRP with Odin

in TWRP format Data, flash the dmverity fix, then root (I used SuperSU)

still in TWRP flash this Exynos Note 8 Tmobile zip

possibly optional but flash NOTORIOUS kernel

now you can try rebooting and hope it works

After the weird few reboots from rooting it *should* come up and have you set up the phone as though it is T-Mobile. In my case, for some reason it was changing the CSC code in /efs/imei/mps_code.dat and omcnw_code.dat to XAA instead of TMB (so I was somehow ending up with a weird APN that was definitely not T-Mobile) but I changed the script to specifically write both of those to TMB so it should work out of the box now.

*reminder* this is only for Exynos Note 8's, specifically tested on my SM-N950N from South Korea (the SK Telecom version if anyone cares). I have no idea if it will work the same on an N950F European model, though I'd be curious if it enables Wifi Calling correctly on those since the original S8+ version does enable Wfc on the F variant.

anywho, if you are feeling up to it, here is the current zip:

*EDIT*

updated file 2017-09-25 because I realized the Epdg and some framework files were not necessary for the 950F to get T-Mobile Wifi Calling working. I may revise it again and remove all the omc files for the other carriers but this is about as good as it's going to be. It should work on a stock 950N still to give HD voice, VoLTE, video calling, etc but will not enable Wifi Calling. On a 950F-based Touchwiz ROM it will enable T-Mobile Wifi Calling.

Exynos Note 8 T-Mobile CSC pack

oh and it's only 61.2mb in this current form :)

*EDIT*

2017-09-28

Changed the link to a newer version because I realized I was having to flash it twice to get Tmo stuff to work. It was defaulting to XAA instead of TMB.
[Samsung Galaxy Note 8 Questions and Answers] Kalm_Traveler:
Confirmation that the 950F software works
[Samsung Galaxy Note 8 Questions and Answers] xxx42069:
Man this is amazing work. You're a f**king legend and a boss. Seriously thank you so much for your hard work on this. I don't have my 950f yet, scheduled to be delivered the 27th but I'd be happy to be the guinea pig and test it out to report my findings. Couple of (probably stupid) questions for you:

1- I noticed you used super su, would this work with magisk as well?

2- any particular reason you chose super su over magisk? Isn't magisk better because it hides root from apps that won't work/show in google play when rooted?

3- where do I get the dmverity fix? I've googled around and I think I found it but I just want to make sure I'm using the right thing.

Thanks for all this including the detailed instructions. I'm hugely appreciative and I have a ton of respect for what you have accomplished. Is there some way I can send you some donation money? I'd love to buy you your next few rounds of drinks, you really deserve it. Many thanks again, I can't thank you enough.
[Samsung Galaxy Note 8 Questions and Answers] Kalm_Traveler:
haha thanks for the praise, but really I just took what others had done and built a new version for our devices, the foundation is all TEKHD :)

1: Yes, works fine with Magisk. I ended up flashing the NEMESIS 950F-based ROM last night and it automatically put Magisk on. I can confirm that my theory was correct, this patch DOES enable T-Mobile wifi calling on F-based ROMS. However, Magisk lost root for some reason and in the thread people mentioned it was probably due to the kernel used in that ROM so I switched to NOTORIOUS kernel and went with SuperSU due to familiarity.

2: I just use it due to familiarity mostly, but I believe you can hide it now with suhide. I haven't looked into this with either Magisk or SuperSU + SuHide because I haven't run into a need, although now that you bring it up this may be why my stupid LG air conditioning app stopped working as soon as I rooted...

3: I got it from the TWRP thread here

totally don't deserve any donations but if you really want to, my paypal is on my profile :victory:
[Samsung Galaxy Note 8 Questions and Answers] xxx42069:
Awesome thanks for the clarification. Btw if you decide to use magisk again, it has been reported that if you flash it separately after installing rom or kernel, it doesn't lose root.

Donation sent, grab a few 6 packs on me buddy. Great work and many thanks! :good: